Adding Chop as a Backbone example.

index.html

@@ -286,6 +286,7 @@
       <li>– <a href="#examples-tilemill">TileMill</a></li>
       <li>- <a href="#examples-instagreat">Insta-great!</a></li>
       <li>- <a href="#examples-bittorrent">BitTorrent</a></li>
+      <li>- <a href="#examples-chop">Chop</a></li>
       <li>- <a href="#examples-quietwrite">QuietWrite</a></li>
       <li>- <a href="#examples-tzigla">Tzigla</a></li>
       <li>- <a href="#examples-substance">Substance</a></li>
@@ -2115,6 +2116,23 @@ <h2 id="examples-BitTorrent">BitTorrent &ndash; Project Chrysalis</h2>
       </a>
     </div>
 
+    <h2 id="examples-chop">Chop</h2>
+
+    <p>
+      <a href="http://chopapp.com/">Chop</a> is a little app from 
+      <a href="http://www.zurb.com/">ZURB</a> that lets people slice up bad code 
+      and share their feedback to help put it back together. 
+      Chop was built to demonstrate how easy it is to build pageless apps 
+      using Backbone.js and Rails. Chop makes extensive use of Backbone <b>Views</b>, 
+      <b>Controllers</b>, and <b>Models</b>.
+    </p>
+
+    <div style="text-align: center;">
+      <a href="http://chopapp.com/">
+        <img src="docs/images/chop.png" alt="Chop" class="example_image" />
+      </a>
+    </div>
+
     <h2 id="examples-quietwrite">QuietWrite</h2>
 
     <p>