Update in request of author

Update in request of author

Author: Melony QIN

articles/automation/automation-dsc-onboarding.md

@@ -18,7 +18,8 @@ Like [PowerShell Desired State Configuration](https://technet.microsoft.com/libr
 
 Azure Automation DSC can be used to manage a variety of machines:
 
-* Azure virtual machines ( both classic VMs and ARM VMs)
+* Azure virtual machines ( classic )
+* Azure virtual machines ( Azure Resource Manager )
 * Amazon Web Services (AWS) EC2 instances 
 * Physical/virtual Windows machines on-premises, or in a cloud other than Azure/AWS
 * Physical/virtual Linux machines on-premises, in Azure, or in a cloud other than Azure