diff --git a/build.js b/build.js
index bbbe43c..4731d96 100644
--- a/build.js
+++ b/build.js
@@ -116,7 +116,7 @@ function build(callback) {
     smith
       .use(
         serve({
-          port: 8000,
+          port: 8001,
           verbose: true,
         }),
       )
diff --git a/docs/index.html b/docs/index.html
index c5c5493..3dfab1a 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -436,7 +436,7 @@
         <div id="right">
             <div class="content">
                 <p><b>I built this guide because I could never quite wrap my head around Makefiles.</b> They seemed awash with hidden rules and esoteric symbols, and asking simple questions didn’t yield simple answers. To solve this, I sat down for several weekends and read everything I could about Makefiles. I&#39;ve condensed the most critical knowledge into this guide. Each topic has a brief description and a self contained example that you can run yourself.</p>
-<p>If you mostly understand Make, consider checking out the Makefile Cookbook, which has a template for medium sized projects with ample comments about what each part of the Makefile is doing.</p>
+<p>If you mostly understand Make, consider checking out the <a href="#makefile-cookbook">Makefile Cookbook</a>, which has a template for medium sized projects with ample comments about what each part of the Makefile is doing.</p>
 <p>Good luck, and I hope you are able to slay the confusing world of Makefiles!</p>
 <h1 id="getting-started">Getting Started</h1>
 <h2 id="why-do-makefiles-exist">Why do Makefiles exist?</h2>
@@ -455,6 +455,9 @@ <h2 id="running-the-examples">Running the Examples</h2>
 <p>To run these examples, you&#39;ll need a terminal and &quot;make&quot; installed. For each example, put the contents in a file called <code>Makefile</code>, and in that directory run the command <code>make</code>. Let&#39;s start with the simplest of Makefiles:</p>
 <pre><code class="hljs makefile"><span class="hljs-section">hello:</span>
 	echo <span class="hljs-string">"hello world"</span></code></pre>
+<blockquote>
+<p>Note: Makefiles <strong>must</strong> be indented using TABs and not spaces or <code>make</code> will fail.</p>
+</blockquote>
 <p>Here is the output of running the above example:</p>
 <pre><code class="hljs shell"><span class="hljs-meta">$</span><span class="bash"> make</span>
 echo "hello world"