Update managed-instance-disaster-recovery.md

-------
cc: @dnethi

Author: dnethi

articles/azure-arc/data/managed-instance-disaster-recovery.md

@@ -45,6 +45,11 @@ The following image shows a properly configured distributed availability group:
 
 2. Provision the managed instance in the secondary site and configure as a disaster recovery instance. At this point, the system databases are not part of the contained availability group.
 
+> [!NOTE]
+> - It is important to specify `--license-type DisasterRecovery` **during** the Azure Arc SQL MI creation. This will allow the DR instance to be seeded from the primary instance in the primary data center. Updating this property post deployment will not have the same effect.
+
+
+
    ```azurecli
    az sql mi-arc create --name <secondaryinstance> --tier bc --replicas 3 --license-type DisasterRecovery --k8s-namespace <namespace> --use-k8s
    ```