Remove .html extension from links

chrome/common/extensions/docs/templates/intros/omnibox.html

 <p>
 <img src="{{static}}/images/omnibox.png" width="300" height="150"
   alt="A screenshot showing suggestions related to the keyword 'Chromium Search'"/>
 </p>
 
 <p>
 When the user enters your extension's
 keyword, the user starts
 interacting solely with your extension.
 Each keystroke is sent to your
 extension, and you can provide suggestions
 in response.
 </p>
 
 <p>
 The suggestions can be richly formatted
 in a variety of ways.
 
 When the user accepts
 a suggestion, your extension is notified
 and can take action.
 </p>
 
 <h2 id="manifest">Manifest</h2>
 
 <p>
 You must include an <code>omnibox</code> <code>keyword</code> field
-in the <a href="manifest.html">manifest</a> 
+in the <a href="manifest">manifest</a> 
 to use the omnibox API.
 You should also
 specify a 16x16-pixel icon, which will be
 displayed in the address bar when suggesting that users
 enter keyword mode.
 </p>
 
 <p>
 For example:
 </p>
@@ skipping 12 matching lines @@
   }
 }
 </pre>
 
 <p class="note">
 <strong>Note:</strong>
 Chrome automatically creates a grayscale version of
 your 16x16-pixel icon. You should provide
 a full-color version so that it can also be
 used in other situations that require color.
-For example, the <a href="contextMenus.html"
+For example, the <a href="contextMenus"
 >context menus API</a> also uses a 16x16-pixel
 icon, but it is displayed in color.
 </p>
 
 
 <h2 id="examples">Examples</h2>
 
 <p>
 You can find samples of this API on the
-<a href="samples.html#omnibox">sample page</a>.
+<a href="samples#omnibox">sample page</a>.