Add link to GitHub project on about page

views/about.html

@@ -4,7 +4,7 @@
 
   <h2>About</h2>
   <div class="content">
-    <p>This application allows you to  view information on the individual nodes that make up the Tor network. All information is provided by the <a target="_blank" href="//onionoo.torproject.org">Onionoo</a> API.</p>
+    <p>This application allows you to  view information on the individual nodes that make up the Tor network. All information is provided by the <a target="_blank" href="//onionoo.torproject.org">Onionoo</a> API. You can follow development on <a target="_blank" href="//github.com/lukechilds/tor-explorer">GitHub</a>.</p>
     <p>Tor is free software for enabling anonymous communication. If you've never used Tor before, why not give it a go, it's really easy to use, just download the <a target="_blank" href="//torproject.org/projects/torbrowser.html">Tor Browser Bundle</a> and fire it up. If you find Tor useful, maybe consider <a target="_blank" href="//eff.org/torchallenge/">running a relay</a>.</p>
     <p><small>"Tor" and the "Onion Logo" are registered trademarks of The Tor Project, Inc.</small></p>
   </div>