Update how-to-docs.html

Co-authored-by: Casey Carter <[email protected]>

Author: jwakely

how-to-docs.html

@@ -74,8 +74,7 @@ <h2>Add or change issues</h2>
 new issue.</p>
 <p>Commit files locally as you update them:</p>
 <blockquote>
-  <pre>cd xml
-<em># edit the XML files or add new XML files</em>
+  <pre><em># edit the XML files or add new XML files</em>
 <em># ...</em>
 <em># stage the edited XML files (and any new ones) to be committed:</em>
 git add xml/issues*.xml