Add NTP to the sidenav.

chrome/common/extensions/docs/template/api_template.html

   <div id="container">
       <!-- SUBTEMPLATES: DO NOT MOVE FROM THIS LOCATION -->
       <!-- In particular, sub-templates that recurse, must be used by allowing
            jstemplate to make a copy of the template in this section which
            are not operated on by way of the jsskip="true" -->
       <div jsskip="true" style="display:none">
 
         <!-- VALUE -->
         <div id="valueTemplate">
           <dt>
@@ skipping 69 matching lines @@
       <div id="leftNav">
         <ul>
           <li> <a href="index.html">Home</a></li>
           <li> <a href="getstarted.html">Getting Started</a></li>
           <li> <a href="overview.html">Overview</a></li>
           <li> <a href="devguide.html"><div>Developer's Guide</div></a>
             <ul>
               <li> UI Surfaces
                 <ul>
                   <li><a href="browserAction.html">Browser Actions</a></li>
+                  <li><a href="ntp.html">New Tab Pages</a></li>
                   <li><a href="pageAction.html">Page Actions</a></li>
                   <li><a href="themes.html">Themes</a></li>
                 </ul>
               </li>
               <li> More Interaction
                 <ul>
                   <li><a href="bookmarks.html">Bookmarks</a></li>
                   <li><a href="events.html">Events</a></li>
                   <li><a href="tabs.html">Tabs</a></li>
                   <li><a href="windows.html">Windows</a></li>
@@ skipping 280 matching lines @@
     _uanchor=1;
     _uff=0;
     urchinTracker();
   }
   catch(e) {/* urchinTracker not available. */}
 </script>
 <!-- end analytics -->
 
     </div> <!-- /pageFooter -->
   </div> <!-- /container -->