Added information on where to ask questions

index.html

@@ -55,7 +55,9 @@
   as part of <a href="http://chap.almende.com/" target="_blank">CHAP</a>.
   Vis.js runs fine on Chrome, Firefox, Opera, Safari, IE9+, and most mobile browsers (with full touch support).
 </p>
-
+<p>
+  This site contains documentation, downloads and live examples of vis.js. The <a href="https://github.com/almende/vis/issues">sourcecode of vis.js</a> is available at Github. For questions, issues, and suggestions please use the <a href="https://github.com/almende/vis/issues">issues section</a> of the Github project.
+</p>
 
 <h2 id="install">Install</h2>