update date

Author: cephalin

articles/app-service/deploy-ftp.md

@@ -12,7 +12,7 @@ ms.service: app-service
 ms.workload: na
 ms.tgt_pltfrm: na
 ms.topic: article
-ms.date: 11/30/2018
+ms.date: 09/18/2019
 ms.author: cephalin
 ms.reviewer: dariac
 ms.custom: seodec18