[DESIGN] change icon.

templates/pages/projects/project.html

@@ -108,7 +108,7 @@
                                                 </li>
                                             </ul>
                                             ">
-                                            <span class="glyphicon glyphicon-dashboard" aria-hidden="true"
+                                            <span class="glyphicon glyphicon-repeat" aria-hidden="true"
                                             title='Recalculate ngram scores and similarities'></span>
                                         </button>
                                         <button type="button" class="btn btn-default" data-container="body" data-toggle="popover" data-placement="bottom"