Add IRC to docs

docs/_layouts/default.html

@@ -44,6 +44,7 @@
         <ul class="nav">
           <li><a href="https://github.com/orchardup/fig">Fig on GitHub</a></li>
           <li><a href="https://twitter.com/orchardup">Follow us on Twitter</a></li>
+          <li><a href="http://webchat.freenode.net/?channels=%23orchardup&uio=d4">#orchardup on Freenode</a></li>
         </ul>
 
         <div class="badges">