Update Context-Menu.md

Author: berylouma

js/TreeGrid/Context-Menu.md

@@ -1,7 +1,7 @@
 ---
 layout: post
 title: Context-Menu in JavaScript TreeGrid | Syncfusion
-description: Learn here about context menu in Syncfusion Essential JavaScript TreeGrid Control, its elements, and more.
+description: Learn here about context menu support in Syncfusion Essential JavaScript TreeGrid Control, its elements, and more.
 platform: js
 control: TreeGrid
 documentation: ug