diff --git a/404.html b/404.html
index e7055fd..02b61e5 100644
--- a/404.html
+++ b/404.html
@@ -324,8 +324,8 @@ <h1>Page not found</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/404.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/404.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index f711a83..4cc4a42 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -346,7 +346,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 7e72280..f8d4e8a 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -397,7 +397,7 @@ <h1>Licenses</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/LICENSE.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index c7c4ef2..7f04cd9 100644
--- a/aio.html
+++ b/aio.html
@@ -2031,7 +2031,7 @@ <h3 class="callout-title">Exercise 1: Normalization<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -2059,7 +2059,7 @@ <h3 class="callout-title">Exercise 2: Dimensionality Reduction<a class="anchor"
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>First subset the object to include only highly variable genes
 (<code>sce2 &lt;- sce[hvg.sce.var,]</code>) and then apply the
@@ -2074,7 +2074,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -2101,7 +2101,7 @@ <h3 class="callout-title">Exercise 3: PBMC Data<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3228,7 +3228,7 @@ <h3 class="callout-title">Exercise 1: Clustering<a class="anchor" aria-label="an
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>The <code>NNGraphParam</code> constructor has an argument
 <code>cluster.args</code>. This allows to specify arguments passed on to
@@ -3245,7 +3245,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3275,7 +3275,7 @@ <h3 class="callout-title">Exercise 2: Cluster annotation<a class="anchor" aria-l
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the <code>goana()</code> function from the <em><a href="https://bioconductor.org/packages/3.18/limma" class="external-link">limma</a></em>
 package to identify GO BP terms that are overrepresented in the list of
@@ -3289,7 +3289,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3320,7 +3320,7 @@ <h3 class="callout-title">Exercise 3: Workflow<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5355,7 +5355,7 @@ <h3 class="callout-title">Exercise 1: Out of memory representation<a class="anch
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>See the <code>HDF5Array</code> function for reading from HDF5 and the
 <code>writeHDF5Array</code> function for writing to HDF5 from the <em><a href="https://bioconductor.org/packages/3.18/HDF5Array" class="external-link">HDF5Array</a></em>
@@ -5369,7 +5369,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5397,7 +5397,7 @@ <h3 class="callout-title">Exercise 2: Parallelization<a class="anchor" aria-labe
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the function <code>system.time</code> to obtain the runtime of
 each job.</p>
@@ -5410,7 +5410,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5440,7 +5440,7 @@ <h3 class="callout-title">Exercise 3: Conversion to Seurat<a class="anchor" aria
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint3" aria-expanded="false" aria-controls="collapseHint3">
   <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 </button>
-<div id="collapseHint3" class="accordion-collapse collapse" data-bs-parent="#accordionHint3" aria-labelledby="headingHint3">
+<div id="collapseHint3" class="accordion-collapse collapse" aria-labelledby="headingHint3" data-bs-parent="#accordionHint3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -5452,7 +5452,7 @@ <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -6368,8 +6368,8 @@ <h1 id="acknowledgements">Acknowledgements<a class="anchor" aria-label="anchor"
   "url": "https://ccb-hms.github.io/osca-carpentries/aio.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/aio.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/cell_type_annotation.html b/cell_type_annotation.html
index fa88f04..ec4ce2d 100644
--- a/cell_type_annotation.html
+++ b/cell_type_annotation.html
@@ -1348,7 +1348,7 @@ <h3 class="callout-title">Exercise 1: Clustering<a class="anchor" aria-label="an
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>The <code>NNGraphParam</code> constructor has an argument
 <code>cluster.args</code>. This allows to specify arguments passed on to
@@ -1365,7 +1365,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1395,7 +1395,7 @@ <h3 class="callout-title">Exercise 2: Cluster annotation<a class="anchor" aria-l
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the <code>goana()</code> function from the <em><a href="https://bioconductor.org/packages/3.18/limma" class="external-link">limma</a></em>
 package to identify GO BP terms that are overrepresented in the list of
@@ -1409,7 +1409,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1440,7 +1440,7 @@ <h3 class="callout-title">Exercise 3: Workflow<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1526,7 +1526,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://ccb-hms.github.io/osca-carpentries/cell_type_annotation.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/eda_qc.html b/eda_qc.html
index 5fe9563..cc8dc02 100644
--- a/eda_qc.html
+++ b/eda_qc.html
@@ -1403,7 +1403,7 @@ <h3 class="callout-title">Exercise 1: Normalization<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1431,7 +1431,7 @@ <h3 class="callout-title">Exercise 2: Dimensionality Reduction<a class="anchor"
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>First subset the object to include only highly variable genes
 (<code>sce2 &lt;- sce[hvg.sce.var,]</code>) and then apply the
@@ -1446,7 +1446,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1473,7 +1473,7 @@ <h3 class="callout-title">Exercise 3: PBMC Data<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1562,7 +1562,7 @@ <h1 id="references">References<a class="anchor" aria-label="anchor" href="#refer
   "identifier": "https://ccb-hms.github.io/osca-carpentries/eda_qc.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/hca.html b/hca.html
index fed6751..bfad617 100644
--- a/hca.html
+++ b/hca.html
@@ -1127,7 +1127,7 @@ <h1 id="acknowledgements">Acknowledgements<a class="anchor" aria-label="anchor"
   "identifier": "https://ccb-hms.github.io/osca-carpentries/hca.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 332cd5a..accbb63 100644
--- a/images.html
+++ b/images.html
@@ -428,8 +428,8 @@ <h3 id="multi-sample-figure-7">Figure 7</h3>
   "url": "https://ccb-hms.github.io/osca-carpentries/images.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/images.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 94c821e..3a586eb 100644
--- a/index.html
+++ b/index.html
@@ -308,7 +308,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Use PuTTY</p>
 </div>
@@ -320,7 +320,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -332,7 +332,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
@@ -392,8 +392,8 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
   "url": "https://ccb-hms.github.io/osca-carpentries/index.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/index.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index f9c4b8a..b0b7a66 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -364,8 +364,8 @@ <h1>Instructor Notes</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor-notes.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor-notes.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 61cd60d..1ec9bf4 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -324,8 +324,8 @@ <h1>Page not found</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/404.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/404.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 7e40036..83219d4 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -348,7 +348,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index a72ac6b..e3e5c4c 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -399,7 +399,7 @@ <h1>Licenses</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/LICENSE.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 418529e..dab15c3 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -2035,7 +2035,7 @@ <h3 class="callout-title">Exercise 1: Normalization<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -2063,7 +2063,7 @@ <h3 class="callout-title">Exercise 2: Dimensionality Reduction<a class="anchor"
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>First subset the object to include only highly variable genes
 (<code>sce2 &lt;- sce[hvg.sce.var,]</code>) and then apply the
@@ -2078,7 +2078,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -2105,7 +2105,7 @@ <h3 class="callout-title">Exercise 3: PBMC Data<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3233,7 +3233,7 @@ <h3 class="callout-title">Exercise 1: Clustering<a class="anchor" aria-label="an
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>The <code>NNGraphParam</code> constructor has an argument
 <code>cluster.args</code>. This allows to specify arguments passed on to
@@ -3250,7 +3250,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3280,7 +3280,7 @@ <h3 class="callout-title">Exercise 2: Cluster annotation<a class="anchor" aria-l
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the <code>goana()</code> function from the <em><a href="https://bioconductor.org/packages/3.18/limma" class="external-link">limma</a></em>
 package to identify GO BP terms that are overrepresented in the list of
@@ -3294,7 +3294,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -3325,7 +3325,7 @@ <h3 class="callout-title">Exercise 3: Workflow<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5362,7 +5362,7 @@ <h3 class="callout-title">Exercise 1: Out of memory representation<a class="anch
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>See the <code>HDF5Array</code> function for reading from HDF5 and the
 <code>writeHDF5Array</code> function for writing to HDF5 from the <em><a href="https://bioconductor.org/packages/3.18/HDF5Array" class="external-link">HDF5Array</a></em>
@@ -5376,7 +5376,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5404,7 +5404,7 @@ <h3 class="callout-title">Exercise 2: Parallelization<a class="anchor" aria-labe
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the function <code>system.time</code> to obtain the runtime of
 each job.</p>
@@ -5417,7 +5417,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -5447,7 +5447,7 @@ <h3 class="callout-title">Exercise 3: Conversion to Seurat<a class="anchor" aria
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint3" aria-expanded="false" aria-controls="collapseHint3">
   <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 </button>
-<div id="collapseHint3" class="accordion-collapse collapse" data-bs-parent="#accordionHint3" aria-labelledby="headingHint3">
+<div id="collapseHint3" class="accordion-collapse collapse" aria-labelledby="headingHint3" data-bs-parent="#accordionHint3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -5459,7 +5459,7 @@ <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -6376,8 +6376,8 @@ <h1 id="acknowledgements">Acknowledgements<a class="anchor" aria-label="anchor"
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/aio.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/aio.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/cell_type_annotation.html b/instructor/cell_type_annotation.html
index a39f796..6f0dc65 100644
--- a/instructor/cell_type_annotation.html
+++ b/instructor/cell_type_annotation.html
@@ -1350,7 +1350,7 @@ <h3 class="callout-title">Exercise 1: Clustering<a class="anchor" aria-label="an
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>The <code>NNGraphParam</code> constructor has an argument
 <code>cluster.args</code>. This allows to specify arguments passed on to
@@ -1367,7 +1367,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1397,7 +1397,7 @@ <h3 class="callout-title">Exercise 2: Cluster annotation<a class="anchor" aria-l
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the <code>goana()</code> function from the <em><a href="https://bioconductor.org/packages/3.18/limma" class="external-link">limma</a></em>
 package to identify GO BP terms that are overrepresented in the list of
@@ -1411,7 +1411,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1442,7 +1442,7 @@ <h3 class="callout-title">Exercise 3: Workflow<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1528,7 +1528,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/cell_type_annotation.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/eda_qc.html b/instructor/eda_qc.html
index 1d7400e..5db189a 100644
--- a/instructor/eda_qc.html
+++ b/instructor/eda_qc.html
@@ -1405,7 +1405,7 @@ <h3 class="callout-title">Exercise 1: Normalization<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1433,7 +1433,7 @@ <h3 class="callout-title">Exercise 2: Dimensionality Reduction<a class="anchor"
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>First subset the object to include only highly variable genes
 (<code>sce2 &lt;- sce[hvg.sce.var,]</code>) and then apply the
@@ -1448,7 +1448,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1475,7 +1475,7 @@ <h3 class="callout-title">Exercise 3: PBMC Data<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1564,7 +1564,7 @@ <h1 id="references">References<a class="anchor" aria-label="anchor" href="#refer
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/eda_qc.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/hca.html b/instructor/hca.html
index eff7f70..8abe0c2 100644
--- a/instructor/hca.html
+++ b/instructor/hca.html
@@ -1129,7 +1129,7 @@ <h1 id="acknowledgements">Acknowledgements<a class="anchor" aria-label="anchor"
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/hca.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 04941c3..5edeb19 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -430,8 +430,8 @@ <h3 id="multi-sample-figure-7">Figure 7</h3>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/images.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/images.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index fccd326..50a0bf5 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -373,7 +373,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Use PuTTY</p>
 </div>
@@ -385,7 +385,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -397,7 +397,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
@@ -457,8 +457,8 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/index.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/index.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 564c90f..82ad067 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -372,8 +372,8 @@ <h1>Instructor Notes</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/instructor-notes.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/instructor-notes.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/intro-sce.html b/instructor/intro-sce.html
index 2005005..0401bb1 100644
--- a/instructor/intro-sce.html
+++ b/instructor/intro-sce.html
@@ -871,7 +871,7 @@ <h1 id="further-reading">Further Reading<a class="anchor" aria-label="anchor" hr
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/intro-sce.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 861ede6..d5d306e 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -389,8 +389,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/key-points.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/key-points.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/large_data.html b/instructor/large_data.html
index b5b2326..4ea0fc1 100644
--- a/instructor/large_data.html
+++ b/instructor/large_data.html
@@ -1193,7 +1193,7 @@ <h3 class="callout-title">Exercise 1: Out of memory representation<a class="anch
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>See the <code>HDF5Array</code> function for reading from HDF5 and the
 <code>writeHDF5Array</code> function for writing to HDF5 from the <em><a href="https://bioconductor.org/packages/3.18/HDF5Array" class="external-link">HDF5Array</a></em>
@@ -1207,7 +1207,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1235,7 +1235,7 @@ <h3 class="callout-title">Exercise 2: Parallelization<a class="anchor" aria-labe
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the function <code>system.time</code> to obtain the runtime of
 each job.</p>
@@ -1248,7 +1248,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1278,7 +1278,7 @@ <h3 class="callout-title">Exercise 3: Conversion to Seurat<a class="anchor" aria
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint3" aria-expanded="false" aria-controls="collapseHint3">
   <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 </button>
-<div id="collapseHint3" class="accordion-collapse collapse" data-bs-parent="#accordionHint3" aria-labelledby="headingHint3">
+<div id="collapseHint3" class="accordion-collapse collapse" aria-labelledby="headingHint3" data-bs-parent="#accordionHint3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -1290,7 +1290,7 @@ <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -1379,7 +1379,7 @@ <h1 id="references">References<a class="anchor" aria-label="anchor" href="#refer
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/large_data.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/multi-sample.html b/instructor/multi-sample.html
index aa4aea4..37a0301 100644
--- a/instructor/multi-sample.html
+++ b/instructor/multi-sample.html
@@ -1383,7 +1383,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/multi-sample.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index ffdd394..68874d4 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -299,8 +299,8 @@ <h1>Learner Profiles</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/instructor/profiles.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/profiles.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 2cee9e2..3e07ccd 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -341,7 +341,7 @@ <h1>Reference</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/instructor/reference.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/intro-sce.html b/intro-sce.html
index f403f56..561e53d 100644
--- a/intro-sce.html
+++ b/intro-sce.html
@@ -869,7 +869,7 @@ <h1 id="further-reading">Further Reading<a class="anchor" aria-label="anchor" hr
   "identifier": "https://ccb-hms.github.io/osca-carpentries/intro-sce.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index b0d2f10..644c8bd 100644
--- a/key-points.html
+++ b/key-points.html
@@ -387,8 +387,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://ccb-hms.github.io/osca-carpentries/key-points.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/key-points.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/large_data.html b/large_data.html
index 230791c..5d81b82 100644
--- a/large_data.html
+++ b/large_data.html
@@ -1191,7 +1191,7 @@ <h3 class="callout-title">Exercise 1: Out of memory representation<a class="anch
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint1" aria-expanded="false" aria-controls="collapseHint1">
   <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
 <div class="accordion-body">
 <p>See the <code>HDF5Array</code> function for reading from HDF5 and the
 <code>writeHDF5Array</code> function for writing to HDF5 from the <em><a href="https://bioconductor.org/packages/3.18/HDF5Array" class="external-link">HDF5Array</a></em>
@@ -1205,7 +1205,7 @@ <h4 class="accordion-header" id="headingHint1">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1233,7 +1233,7 @@ <h3 class="callout-title">Exercise 2: Parallelization<a class="anchor" aria-labe
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint2" aria-expanded="false" aria-controls="collapseHint2">
   <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
 <div class="accordion-body">
 <p>Use the function <code>system.time</code> to obtain the runtime of
 each job.</p>
@@ -1246,7 +1246,7 @@ <h4 class="accordion-header" id="headingHint2">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>TODO</p>
 </div>
@@ -1276,7 +1276,7 @@ <h3 class="callout-title">Exercise 3: Conversion to Seurat<a class="anchor" aria
 <button class="accordion-button hint-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHint3" aria-expanded="false" aria-controls="collapseHint3">
   <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 </button>
-<div id="collapseHint3" class="accordion-collapse collapse" data-bs-parent="#accordionHint3" aria-labelledby="headingHint3">
+<div id="collapseHint3" class="accordion-collapse collapse" aria-labelledby="headingHint3" data-bs-parent="#accordionHint3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -1288,7 +1288,7 @@ <h4 class="accordion-header" id="headingHint3">Give me a hint</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Use Seurat’s <code>DimPlot</code> function.</p>
 </div>
@@ -1377,7 +1377,7 @@ <h1 id="references">References<a class="anchor" aria-label="anchor" href="#refer
   "identifier": "https://ccb-hms.github.io/osca-carpentries/large_data.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/multi-sample.html b/multi-sample.html
index 3200c35..5826a9d 100644
--- a/multi-sample.html
+++ b/multi-sample.html
@@ -1381,7 +1381,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://ccb-hms.github.io/osca-carpentries/multi-sample.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index ae8a2b1..6786196 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.8
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-04-16T01:00Z
+last_built: 2024-04-18T20:36Z
 
diff --git a/profiles.html b/profiles.html
index 2de3b52..35bf2a2 100644
--- a/profiles.html
+++ b/profiles.html
@@ -299,8 +299,8 @@ <h1>Learner Profiles</h1>
   "url": "https://ccb-hms.github.io/osca-carpentries/profiles.html",
   "identifier": "https://ccb-hms.github.io/osca-carpentries/profiles.html",
   "dateCreated": "2024-01-10",
-  "dateModified": "2024-04-16",
-  "datePublished": "2024-04-16"
+  "dateModified": "2024-04-18",
+  "datePublished": "2024-04-18"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 74b078a..e4395f2 100644
--- a/reference.html
+++ b/reference.html
@@ -339,7 +339,7 @@ <h1>Reference</h1>
   "identifier": "https://ccb-hms.github.io/osca-carpentries/reference.html",
   "dateCreated": "2024-01-10",
   "dateModified": "2024-04-09",
-  "datePublished": "2024-04-16"
+  "datePublished": "2024-04-18"
 }
 
   </script><script>