Update virtual-machines-windows-powershell-sample-create-iis-using-dsc.md

The type is DSC and not CustomScriptExtension. https://docs.microsoft.com/en-us/powershell/module/azurerm.compute/set-azurermvmextension?view=azurermps-6.7.0 Has an example of using the custom script extension

Author: jrudley

articles/virtual-machines/scripts/virtual-machines-windows-powershell-sample-create-iis-using-dsc.md

@@ -46,7 +46,7 @@ This script uses the following commands to create the deployment. Each item in t
 |---|---|
 | [New-AzureRmResourceGroup](/powershell/module/azurerm.resources/new-azurermresourcegroup) | Creates a resource group in which all resources are stored. |
 | [New-AzureRmVM](/powershell/module/azurerm.compute/new-azurermvm) | Creates the virtual machine and connects it to the network card, virtual network, subnet, and network security group. This command also opens port 80 and sets the administrative credentials. |
-| [Set-AzureRmVMExtension](/powershell/module/azurerm.compute/set-azurermvmextension) | Add a VM extension to the virtual machine. In this sample, the custom script extension is used to install IIS. |
+| [Set-AzureRmVMExtension](/powershell/module/azurerm.compute/set-azurermvmextension) | Add a VM extension to the virtual machine. In this sample, the DSC extension is used to install IIS. |
 |[Remove-AzureRmResourceGroup](/powershell/module/azurerm.resources/remove-azurermresourcegroup) | Removes a resource group and all resources contained within. |
 
 ## Next steps