Adds audio volume demo to the index page.

BUG=
R=henrika@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5589005

git-svn-id: http://webrtc.googlecode.com/svn/trunk/samples/js@5263 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/demos/index.html b/demos/index.html
index a27937b..fd91570 100644
--- a/demos/index.html
+++ b/demos/index.html
@@ -6,7 +6,7 @@
 <h1>WebRTC Samples</h1>
 <p>
 Here are some sample pages that demonstrate basic
-<a href="http://www.webrtc.org">WebRTC</a> concepts. If you are new to WebRTC, 
+<a href="http://www.webrtc.org">WebRTC</a> concepts. If you are new to WebRTC,
 you may want to check out this
 <a href="http://www.html5rocks.com/en/tutorials/webrtc/basics/">
 WebRTC overview</a> first.
@@ -43,6 +43,19 @@
     <td>
       Shows how to perform face tracking using webcam video.</td>
   </tr>
+  <tr>
+    <td>
+      <a href="html/local-audio-rendering.html">local-audio-rendering.html</a>
+    </td>
+    <td>
+      Shows usage of a local media stream connected to an HTML5 audio tag.</td>
+  </tr>
+  <tr>
+    <td>
+      <a href="html/local-audio-volume.html">local-audio-volume.html</a></td>
+    <td>
+      Shows how to display the volume of a local audio track.</td>
+  </tr>
   <tr><td>&nbsp; </td> <td>&nbsp; </td></tr>
   <tr>
     <td colspan="2" scope="col" style="background-color: rgb(0, 204, 255);">
@@ -98,12 +111,6 @@
   </tr>
   <tr>
     <td>
-      <a href="html/local-audio-rendering.html">local-audio-rendering.html</a></td>
-    <td>
-      Shows usage of a local media stream connected to an HTML5 audio tag.</td>
-  </tr>
-  <tr>
-    <td>
       <a href="html/webaudio-and-webrtc.html">webaudio-and-webrtc.html</a></td>
     <td>
       Captures and filters microphone input using WebAudio and sends it to a remote peer with an option to add an audio effect.</td>