Update howto-kubernetes-cluster-connect.md

Author: dramasamy

articles/operator-nexus/howto-kubernetes-cluster-connect.md

@@ -78,7 +78,7 @@ The `az ssh arc` command allows users to remotely access a cluster VM that has b
     SUBSCRIPTION_ID="<Subscription ID>"
     USER_NAME="azureuser"
     SSH_PRIVATE_KEY_FILE="<vm_ssh_id_rsa>"
-    MANAGED_RESOURCE_GROUP=$(az networkcloud kubernetescluster show -n $CLUSTER_NAME -g $RESOURCE_GROUP --output tsv --query managedResourceGroupConfiguration.name)
+    MANAGED_RESOURCE_GROUP=$(az networkcloud kubernetescluster show -n $CLUSTER_NAME -g $RESOURCE_GROUP --subscription $SUBSCRIPTION_ID --output tsv --query managedResourceGroupConfiguration.name)
     ```
 
 2. Get the available cluster node names.