Add Windows pivot zone for manage video call

Author: jowang-msft

articles/communication-services/how-tos/calling-sdk/manage-video.md

@@ -9,7 +9,7 @@ ms.subservice: calling
 ms.topic: how-to 
 ms.date: 08/10/2021
 ms.custom: template-how-to
-zone_pivot_groups: acs-web-ios-android
+zone_pivot_groups: acs-plat-web-ios-android-windows
 
 #Customer intent: As a developer, I want to manage video calls with the acs sdks so that I can create a calling application that provides video capabilities.
 ---