change DE link

Author: Marjo Poindexter

datastore/templates/includes/footer.html

@@ -6,7 +6,7 @@
     </div>
     <ul class="nav nav-pills nav-pills-centered">
       <li><a href="http://www.cyverse.org/">CyVerse Home</a></li>
-      <li><a href="http://de.cyverse.org/">Discovery Environment Application</a></li>
+      <li><a href="http://de.cyverse.org/de/">Discovery Environment Application</a></li>
       <li><a href="http://atmo.cyverse.org/">Atmosphere Application</a></li>
     </ul>
   </div>