changed Githuh link

Author: Emaasit

Diff for: index.html

@@ -77,7 +77,7 @@ <h3 class="navbar-left"><strong>ggplot2</strong> extensions</h3>
         <li role="presentation" id="nav-home"><a href="index.html">Home</a></li>
         <li role="presentation" id="nav-gallery"><a href="http://ggplot2-exts.github.io/gallery/">Gallery</a></li>
         <li role="presentation" id="nav-showcase"><a href="ggiraph.html">Extensions</a></li>
-        <li role="presentation" id="nav-github"><a href="https://github.com/ggplot2-exts/ggplot2-exts.github.io">GitHub</a></li>
+        <li role="presentation" id="nav-github"><a href="https://github.com/ggplot2-exts">GitHub</a></li>
       </ul>
   </nav>
 </div>