diff --git a/docs/intro.md b/docs/intro.md
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--- a/docs/intro.md
+++ b/docs/intro.md
@@ -12,6 +12,21 @@ efficient communication between distributed computing nodes. By the end of the
 workshop, attendees will have a solid understanding of how to harness these
 powerful tools to write scalable and efficient parallel applications.
 
+## References
+
+- [ODSRCI Workshop: Parallel C++](https://southernmethodistuniversity.github.io/parallel_cpp/)
+- [Developing Accelerated Code with Standard Language Parallelism](https://developer.nvidia.com/blog/developing-accelerated-code-with-standard-language-parallelism/)
+- [MPL: A message passing library](https://rabauke.github.io/mpl/html/)
+
+```{figure} parallel_cpp_qr.png
+:scale: 50 %
+:alt: QR code for Parallel C++ workshop website.
+
+QR code for Parallel C++ workshop website.
+```
+
+## Table of Contents
+
 ```{tableofcontents}
 ```
 
diff --git a/docs/parallel_cpp_qr.png b/docs/parallel_cpp_qr.png
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