bug(EJ2-4805): Changed the documentation reference link in description

src/treeview/draganddrop.html

@@ -15,5 +15,5 @@
 <div id="description">
     <p>The <code>TreeView</code> component allows the user to drag any node and drop the child or sibling of any other nodes. This can be enabled by <code>allowDragAndDrop</code> property.</p>
     <p>In this demo, TreeView was enabled with multiple selection and drag and drop, so you can drag more than one node and drop.</p>
-    <p>For more information, you can refer the <a href="../documentation/treeview/drag-drop.html" target="_blank">Drag and Drop</a> section from the documentation.</p>
+    <p>For more information, you can refer the <a href="../documentation/treeview/drag-and-drop.html" target="_blank">Drag and Drop</a> section from the documentation.</p>
 </div>