Updated old select2-bootstrap-theme link

Author: acorncom

docs/index.html

@@ -59,7 +59,7 @@ <h4>Remote data support</h4>
         <h4>Fits in with your theme</h4>
         <p>
           Fully skinnable, CSS built with Sass and an
-          <a href="https://github.com/fk/select2-bootstrap-theme">optional theme for Bootstrap 3</a>.
+          <a href="https://github.com/select2/select2-bootstrap-theme">optional theme for Bootstrap 3</a>.
         </p>
       </div>
     </div>