added container options to docs for popover

docs/templates/pages/javascript.mustache

@@ -953,6 +953,14 @@ $('a[data-toggle="tab"]').on('shown', function (e) {
               <p>{{_i}}Object structure is: <code>delay: { show: 500, hide: 100 }</code>{{/i}}</p>
              </td>
            </tr>
+           <tr>
+             <td>{{_i}}container{{/i}}</td>
+             <td>{{_i}}string | false{{/i}}</td>
+             <td>{{_i}}false{{/i}}</td>
+             <td>
+              <p>{{_i}}Appends the tooltip to a specific element <code>container: 'body'</code>{{/i}}</p>
+             </td>
+           </tr>
           </tbody>
         </table>
         <div class="alert alert-info">