Adding Tzigla to the examples.

index.html

@@ -1827,6 +1827,29 @@ var DocumentView = Backbone.View.extend({
       </a>
     </div>
     
+    <p>
+      <a href="http://twitter.com/evilchelu">Cristi Balan</a> and 
+      <a href="http://dira.ro">Irina Dumitrascu</a> created 
+      <a href="http://tzigla.com">Tzigla</a>, a collaborative drawing 
+      application where artists make tiles that connect to each other to 
+      create <a href="http://tzigla.com/boards/1">surreal drawings</a>.
+      Backbone models help organize the code, controllers provide 
+      <a href="http://tzigla.com/boards/1#!/tiles/2-2">bookmarkable deep links</a>, 
+      and the views are rendered with 
+      <a href="https://github.com/creationix/haml-js">haml.js</a> and 
+      <a href="http://zeptojs.com/">Zepto</a>.
+      Tzigla is written in Ruby (Rails) on the backend, and 
+      <a href="http://coffeescript.org">CoffeeScript</a> on the frontend, with
+      <a href="http://documentcloud.github.com/jammit/">Jammit</a> 
+      prepackaging the static assets.
+    </p>
+    
+    <div style="text-align: center;">
+      <a href="http://www.tzigla.com/">
+        <img src="docs/images/tzigla.png" alt="Tzigla" class="example_image" />
+      </a>
+    </div>
+    
     <p>
       <a href="http://www.twitter.com/jamesjyu">James Yu</a> used Backbone.js to
       create <a href="http://www.quietwrite.com/">QuietWrite</a>, an app