Adding Trajectory as an example app

index.html

@@ -280,6 +280,7 @@
       <li>– <a href="#examples-documentcloud">DocumentCloud</a></li>
       <li>– <a href="#examples-basecamp">Basecamp Mobile</a></li>
       <li>– <a href="#examples-flow">Flow</a></li>
+      <li>– <a href="#examples-trajectory">Trajectory</a></li>
       <li>– <a href="#examples-cloudapp">CloudApp</a></li>
       <li>– <a href="#examples-soundcloud">Mobile SoundCloud</a></li>
       <li>– <a href="#examples-quoteroller">Quote Roller</a></li>
@@ -2047,6 +2048,23 @@ var model = localBackbone.Model.extend(...);
       </a>
     </div>
     
+    <h2 id="examples-trajectory">Trajectory</h2>
+    
+    <p>
+      <a href="https://www.apptrajectory.com/">Trajectory</a> is an agile 
+      software planning tool used to discuss wireframes, record decisions made, 
+      relate user stories and bugs to discussions, and track your progress and 
+      plan the future. With Rails on the backend, Trajectory uses Backbone.js 
+      heavily to provide a fluid story planning interface that even updates in 
+      real-time based on the actions of other users.
+    </p>
+
+    <div style="text-align: center;">
+      <a href="http://www.apptrajectory.com/">
+        <img src="docs/images/trajectory.png" alt="Trajectory" class="example_image" />
+      </a>
+    </div>
+    
     <h2 id="examples-cloudapp">CloudApp</h2>
     
     <p>