Delete ER Direct Resource

Update PowerShell how-to-doc with guidance for how to delete the ExpressRoute Direct resource.

Author: mialdrid

articles/expressroute/expressroute-howto-erdirect.md

@@ -265,7 +265,12 @@ Create a circuit on the ExpressRoute Direct resource.
   AllowClassicOperations           : False
   GatewayManagerEtag     
   ```
-
+## Delete the resource
+Prior to deleting the ExpressRoute Direct resource, you first need to delete any ExpressRoute circuits created on the ExpressRoute Direct port pair.
+You can delete the ExpressRoute Direct resource by running the following command:
+ ```powershell
+   Remove-azexpressrouteport -Name $Name -Resourcegroupname -$ResourceGroupName
+   ```
 ## Next steps
 
 For more information about ExpressRoute Direct, see the [Overview](expressroute-erdirect-about.md).