Remove .html extension from links

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

 <p>
 In the following figure,
 the multicolored square
 to the right of the address bar
 is the icon for a browser action.
 A popup is below the icon.
 </p>
 
 <img src="{{static}}/images/browser-action.png"
   width="363" height="226" />
 
 <p>
 If you want to create an icon that isn't always visible,
-use a <a href="pageAction.html">page action</a>
+use a <a href="pageAction">page action</a>
 instead of a browser action.
 </p>
 
 <h2 id="manifest">Manifest</h2>
 
 <p>
 Register your browser action in the
-<a href="manifest.html">extension manifest</a>
+<a href="manifest">extension manifest</a>
 like this:
 </p>
 
 <pre data-filename="manifest.json">
 {
   "name": "My extension",
   ...
   <b>"browser_action": {
     "default_icon": {                    <em>// optional</em>
       "19": "images/icon19.png",           <em>// optional</em>
@@ skipping 70 matching lines @@
   </p>
 
 <h3 id="tooltip">Tooltip</h3>
 
 <p>
 To set the tooltip,
 use the <b>default_title</b> field of <b>browser_action</b>
 in the <a href="#manifest">manifest</a>,
 or call the $(ref:browserAction.setTitle) method.
 You can specify locale-specific strings for the <b>default_title</b> field;
-see <a href="i18n.html">Internationalization</a> for details.
+see <a href="i18n">Internationalization</a> for details.
 </p>
 
 <h3 id="badge">Badge</h3>
 
 <p>Browser actions can optionally display a <em>badge</em> &mdash;
   a bit of text that is layered over the icon.
   Badges make it easy to update the browser action
   to display a small amount of information
   about the state of the extension.</p>
 
@@ skipping 29 matching lines @@
 <h2 id="tips">Tips</h2>
 
 <p>For the best visual impact,
   follow these guidelines:</p>
 
 <ul>
   <li><b>Do</b> use browser actions for features
     that make sense on most pages.
   <li><b>Don't</b> use browser actions for features
     that make sense for only a few pages.
-    Use <a href="pageAction.html">page actions</a> instead.
+    Use <a href="pageAction">page actions</a> instead.
   <li><b>Do</b> use big, colorful icons that make the most of
     the 19x19-pixel space.
     Browser action icons should seem a little bigger
     and heavier than page action icons.
   <li><b>Don't</b> attempt to mimic
     Google Chrome's monochrome menu icon.
     That doesn't work well with themes, and anyway,
     extensions should stand out a little.
   <li><b>Do</b> use alpha transparency
     to add soft edges to your icon.
     Because many people use themes,
     your icon should look nice
     on a variety of background colors.
   <li><b>Don't</b> constantly animate your icon.
     That's just annoying.
 </ul>
 
 <h2 id="examples"> Examples </h2>
 
 <p>
 You can find simple examples of using browser actions in the
 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/api/browserAction/">examples/api/browserAction</a>
 directory.
 For other examples and for help in viewing the source code, see
-<a href="samples.html">Samples</a>.
+<a href="samples">Samples</a>.
 </p>