Extensions Docs Server: Fix headings with no IDs

chrome/common/extensions/docs/templates/articles/packaging.html

 <h1>Packaging</h1>
 
 
 <p>
 This page describes how to package your extension.
 As the <a href="overview.html">Overview</a> explains,
 extensions are packaged as signed ZIP files
 with the file extension "crx"&mdash;for example,
 <code>myextension.crx</code>.
 </p>
@@ skipping 15 matching lines @@
 When you package an extension,
 the extension is assigned a unique key pair.
 The extension's ID is based on a hash of the public key.
 The private key is used to sign each version of the extension
 and must be secured from public access.
 Be careful not to include your private key within
 your extensions!
 </p>
 
 
-<h2>Creating a package</h2>
+<h2 id="creating">Creating a package</h2>
 
 <p>To package an extension:</p>
 <ol>
   <li>
     Bring up the Extensions management page
     by going to this URL:
     <blockquote>
     <b>chrome://extensions</b>
     </blockquote>
   </li>
@@ skipping 113 matching lines @@
   <li> Rename the private key that was generated
     when you created the <code>.crx</code> file to <code>key.pem</code>. </li>
   <li> Put <code>key.pem</code> in the top directory
     of your extension. </li>
   <li> Compress that directory into a ZIP file. </li>
   <li> Upload the ZIP file using the
     <a href="https://chrome.google.com/webstore/developer/dashboard">Chrome Developer Dashboard</a>. </li>
 </ol>
 
 
-<h2>Packaging at the command line</h2>
+<h2 id="packaging">Packaging at the command line</h2>
 
 <p>
 Another way to package extensions
 is by invoking <code>chrome.exe</code> at the command line.
 Use the <code>--pack-extension</code> flag
 to specify the location of the extension's folder.
 Use <code>--pack-extension-key</code>
 to specify the location of the extension's private key file.
 For example:
 </p>
 
 <pre>
 chrome.exe --pack-extension=c:\myext --pack-extension-key=c:\myext.pem
 </pre>
 
 <p>
 To suppress the dialog,
 add <code>--no-message-box</code> to the command.
 </p>
 
-<h2>Package format and scripts</h2>
+<h2 id="format">Package format and scripts</h2>
 <p>
 For more information on the format, as well as pointers to scripts you can use
 to create <code>.crx</code> files, see <a href="crx.html">CRX Package Format</a>.
-</p>
+</p>