fix image tag

Author: JnHs

articles/azure-arc/kubernetes/conceptual-azure-rbac.md

@@ -13,7 +13,7 @@ Kubernetes [ClusterRoleBinding and RoleBinding](https://kubernetes.io/docs/refer
 
 ## Architecture
 
-[ ![Diagram showing Azure RBAC architecture.](./media/conceptual-azure-rbac.png) ]
+:::image type="content" source="media/conceptual-azure-rbac.png" alt-text="Diagram showing Azure RBAC architecture.":::
 
 In order to route all authorization access checks to the authorization service in Azure, a webhook server ([guard](https://github.com/appscode/guard)) is deployed on the cluster.
 

articles/azure-arc/kubernetes/conceptual-cluster-connect.md

@@ -13,7 +13,7 @@ Cluster connect allows developers to access their clusters from anywhere for int
 
 ## Architecture
 
-[ ![Diagram showing cluster connect architecture.](./media/conceptual-cluster-connect.png) ]
+:::image type="content" source="media/conceptual-cluster-connect.png" alt-text="Diagram showing cluster connect architecture.":::
 
 On the cluster side, a reverse proxy agent called `clusterconnect-agent`, deployed as part of the agent Helm chart, makes outbound calls to the Azure Arc service to establish the session.