Added link to jQuery UI.

jquery-ui.html

@@ -131,6 +131,7 @@ <h3>Demo Notes</h3>
     <li>Uploaded files will be deleted automatically after <strong>5 minutes</strong> (demo setting).</li>
     <li>You can <strong>drag &amp; drop</strong> files from your desktop on this webpage (see <a href="https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-support">Browser support</a>).</li>
     <li>Please refer to the <a href="https://github.com/blueimp/jQuery-File-Upload">project website</a> and <a href="https://github.com/blueimp/jQuery-File-Upload/wiki">documentation</a> for more information.</li>
+    <li>Built with <a href="http://jqueryui.com">jQuery UI</a>.</li>
 </ul>
 <!-- The blueimp Gallery widget -->
 <div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls" data-filter=":even">