Update turn settings.

static/partials/settings.html

@@ -283,23 +283,27 @@
             </div>
           </div>
 
+          <div>
+              <legend>{{_('Turn')}}</legend>
               <div ng-show="withTurnCustomizable">
                 <div class="form-group">
                   <label class="col-xs-4 control-label">{{_('Turn urls')}}</label>
                   <div class="col-xs-8">
-                <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.urls"/>&nbsp;
+                    <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.urls" placeholder="turn:turnserver:port?transport=udp"/>
+                    <span class="help-block">Comma separated list of urls</span>
                   </div>
                 </div>
                 <div class="form-group">
                   <label class="col-xs-4 control-label">{{_('Turn username')}}</label>
                   <div class="col-xs-8">
-                <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.username"/>&nbsp;
+                    <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.username"/>
                   </div>
                 </div>
                 <div class="form-group">
                   <label class="col-xs-4 control-label">{{_('Turn password')}}</label>
                   <div class="col-xs-8">
-                <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.password"/>&nbsp;
+                    <input class="form-control" type="text" ng-model="user.settings.webrtc.turn.password"/>
+                  </div>
                 </div>
               </div>
           </div>