Revert header of reference.md (and update index.md) to avoid breaking the build process.

index.html

@@ -40,7 +40,7 @@
 <h2 id="other-resources">Other Resources</h2>
 <ul>
 <li><a href="motivation.html">Motivation</a></li>
-<li><a href="reference.html">Reference Guide</a></li>
+<li><a href="reference.html">Reference</a></li>
 <li><a href="discussion.html">Discussion</a></li>
 <li><a href="instructors.html">Instructor's Guide</a></li>
 </ul>

index.md

@@ -17,6 +17,6 @@ Paragraph of introductory material.
 ## Other Resources
 
 *   [Motivation](motivation.html)
-*   [Reference Guide](reference.html)
+*   [Reference](reference.html)
 *   [Discussion](discussion.html)
 *   [Instructor's Guide](instructors.html)

reference.html

@@ -26,14 +26,14 @@
       <div class="row-fluid">
         <div class="span10 offset1">
           <h1 class="title">Lesson Title</h1>
-          <h2 class="subtitle">Reference Guide</h2>
+          <h2 class="subtitle">Reference</h2>
 <p>...commands and examples...</p>
 <h2 id="glossary">Glossary</h2>
 <dl>
-<dt>Key Word 1</dt>
+<dt><span id="key-word-1">Key Word 1</span></dt>
 <dd>Definition of first term
 </dd>
-<dt>Key Word 2</dt>
+<dt><span id="key-word-2">Key Word 2</span></dt>
 <dd>Definition of second term
 </dd>
 </dl>

reference.md

 ---
 layout: page
 title: Lesson Title
-subtitle: Reference Guide
+subtitle: Reference
 ---
 ...commands and examples...