Fix one more

Author: sethmanheim

azure-stack/mdc/index.yml

@@ -7,7 +7,7 @@ metadata:
   title: Azure Modular Data Center (MDC) Operator and User Documentation - Tutorials, Concepts, How to articles # Required; page title displayed in search results. Include the brand. < 60 chars.
   description: The Azure Modular Data Center (MDC) is a modular data center that contains Azure Stack Hub solutions and storage. You can provide Azure services and host large scale compute and storage on-premises or at the edge, either disconnected from Azure or connected to it. It’s optimized for use cases that require data sovereignty and on-premises control.
   ms.service: azure-stack-hub
-  ms.subservice: azure-stack-hub-asdk 
+  ms.subservice: azure-stack-hub-mdc
   ms.topic: landing-page
   author: sethmanheim
   ms.author: sethm