fix end

Author: mbashtovaya

articles/operator-nexus/howto-cluster-manager.md

@@ -376,6 +376,8 @@ $tagHash = @{
 Remove-AzNetworkCloudClusterManager -Name "$CLUSTER_MANAGER_NAME -ResourceGroupName $CLUSTER_MANAGER_RG -SubscriptionId $SUB_ID
 ```
 
+---
+
 ## Next steps
 
 After you successfully created the Network Fabric Controller and the Cluster Manager, the next step is to create a [Network Fabric](./howto-configure-network-fabric.md).