Changed service metadata value

Author: gsteve88

articles/iot-hub/how-to-module-twins.md

@@ -5,7 +5,7 @@ description: Learn how to create module identities and update module identity tw
 author: kgremban
 ms.author: kgremban
 manager: lizross
-ms.service: iot-hub
+ms.service: azure-iot-hub
 ms.devlang: csharp
 ms.topic: how-to
 ms.date: 09/03/2024