Remove .html extension from links

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

 <p>
 Use <code>chrome.devtools.inspectedWindow</code>
 to interact with the inspected window:
 obtain the tab ID for the inspected page,
 evaluate the code in the context of inspected window,
 reload the page,
 or obtain the list of resources within the page.
 </p><p>
-See <a href="devtools.html">DevTools APIs summary</a> for
+See <a href="devtools">DevTools APIs summary</a> for
 general introduction to using Developer Tools APIs.
 </p>
 
 <h2 id="overview">Overview</h2>
 <p>
 The <code>$(ref:devtools.inspectedWindow.tabId tabId)</code> property
 provides the tab identifier that you can use with the
-<a href="tabs.html"><code>chrome.tabs.*</code></a> API calls.
+<a href="tabs"><code>chrome.tabs.*</code></a> API calls.
 However, please note that <code>chrome.tabs.*</code> API is not
 exposed to the Developer Tools extension pages due to security considerations
 &mdash; you will need to pass the tab ID to the background page and invoke
 the <code>chrome.tabs.*</code> API functions from there.
 </p>
 <p>
 The <code>reload</code> method may be used to reload the inspected page.
 Additionally, the caller can specify an override for the user agent string,
 a script that will be injected early upon page load, or an option to force
 reload of cached resources.
@@ skipping 84 matching lines @@
        if (isException)
          console.log("the page is not using jQuery");
        else
          console.log("The page is using jQuery v" + result);
      }
 );
 </pre>
 
 <p>
 You can find more examples that use Developer Tools APIs in
-<a href="samples.html#devtools">Samples</a>.
+<a href="samples#devtools">Samples</a>.
 </p>