Update cdn-app-dev-node.md

Author: qiaozha

articles/cdn/cdn-app-dev-node.md

@@ -13,7 +13,7 @@ ms.workload: tbd
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: how-to
-ms.date: 01/23/2017
+ms.date: 04/02/2021
 ms.author: mazha
 ms.custom: devx-track-js
 ---