Merge pull request #177857 from zr-msft/zr-aks-gmsa

[AKS] add gmsa integration

Author: denrea

articles/aks/TOC.yml

@@ -303,6 +303,8 @@
               href: managed-aad.md
             - name: Azure AD integration (legacy)
               href: azure-ad-integration-cli.md
+            - name: Enable GMSA integration (Preview)
+              href: use-group-managed-service-accounts.md
         - name: Use Azure RBAC for Kubernetes Authorization
           href: manage-azure-rbac.md
         - name: Use Kubernetes RBAC with Azure AD integration