Update index.html

index.html

@@ -46,7 +46,7 @@ altimeter, etc. Based on <a href="https://github.com/bkw/nodecopter-cockpit">nod
 <li><p><strong><a href="https://github.com/eschnou/ardrone-webflight/tree/master/plugins/pilot">pilot</a></strong> to control the drone remotely using the keyboard. Based on <a href="https://github.com/functino/drone-browser">drone-browser</a>.</p></li>
 </ul>
 
-<h2>Additional plugins</h2>
+<h2 id="plugins">Additional plugins</h2>
 
 <p>If you have written your own webflight plugins, please add them to this list by editing this page.</p>
 
@@ -56,7 +56,7 @@ altimeter, etc. Based on <a href="https://github.com/bkw/nodecopter-cockpit">nod
 </ul>
 
 
-<h2>Install</h2>
+<h2 id="install">Install</h2>
 
 <p>WebFlight requires a recent nodejs (built and tested with node &gt; 0.10) as well as
 <a href="https://npmjs.org/">npm</a> and <a href="http://bower.io/">bower</a> for dependency management.</p>