Merge pull request #1984 from syncfusion-content/991373-Add_Sorting_Feature_UG

991373- Added UG content for WPF Kanban sorting feature.

Author: Karthickmani97

wpf-toc.html

@@ -1216,6 +1216,7 @@
             <li><a href="/wpf/Kanban-Board/placeholderstyle">Placeholder</a></li>
             <li><a href="/wpf/Kanban-Board/workflows">Workflows</a></li>
 			 <li><a href="/wpf/Kanban-Board/swimlane">Swimlane</a></li>
+            <li><a href="/wpf/Kanban-Board/sorting">Sorting</a></li>
         </ul>
     </li>