added ms.cutom value

Added 'ms.custom: references_regions' metadata for clarity.

Author: DivyaGundreddy

learn-pr/wwl-azure/explore-ai-governance-ai-ready-infrastructure/3-configure-governance-policy-workloads.yml

@@ -8,6 +8,8 @@ metadata:
   author: wwlpublish
   ms.author: bradj
   ms.topic: unit
+  ms.custom: references_regions
 durationInMinutes: 13
 content: |
   [!include[](includes/3-configure-governance-policy-workloads.md)]
+