added link to popup/index.html

Author: agcolom

docs/pages/loader.html

@@ -107,7 +107,8 @@ <h3>More in this section</h3>
 						<li><a href="page-links.html">Linking pages</a></li>
 						<li><a href="page-transitions.html">Page transitions</a></li>
 						<li data-theme="a"><a href="loader.html">Page loading widget</a></li>
-            <li><a href="page-dialogs.html">Dialogs</a></li>
+            					<li><a href="page-dialogs.html">Dialogs</a></li>
+            					<li><a href="popup/index.html">Popups</a></li>
 						<li><a href="page-cache.html">Prefetching &amp; caching pages</a></li>
 						<li><a href="page-navmodel.html">Ajax, hashes &amp; history</a></li>
 						<li><a href="page-dynamic.html">Dynamically injecting pages</a></li>