Add footer and HSG copyright notice

index.html

@@ -67,6 +67,7 @@ <h2 style="margin-top: 10%">Highgrounds Units</h2>
       </div>
     </div>
   </div>
+  <footer>All images copyright 2012 Heart Shaped Games, all rights reserved. Now go play <a href="http://www.highgroundsgame.com">Highgrounds</a>.</footer>
   <script type="text/javascript" src="xml-to-json.js"></script>
   <script type="text/javascript" src="app.js"></script>
 </body>