Merge pull request #110425 from spboyer/patch-3

Update ms.date on quickstart-control-device-dotnet.md

Author: PRMerger9

articles/iot-hub/quickstart-control-device-dotnet.md

@@ -9,7 +9,7 @@ services: iot-hub
 ms.devlang: csharp
 ms.topic: quickstart
 ms.custom: mvc
-ms.date: 06/21/2019
+ms.date: 03/04/2020
 # As a developer new to IoT Hub, I need to see how to use a back-end application to control a device connected to the hub.
 ---