Update proximity-placement-groups-portal.md

Added a note on intent not being supported on Azure Portal

Author: lakmeedee

articles/virtual-machines/windows/proximity-placement-groups-portal.md

@@ -22,6 +22,8 @@ A proximity placement group is a logical grouping used to make sure that Azure c
 > [!NOTE]
 > Proximity placement groups cannot be used with dedicated hosts.
 >
+> Intent for proximity placement groups is not supported on Azure portal. Use ARM templates or other client tools like Powershell or CLI to provide intent for proximity placement groups.
+>
 > If you want to use availability zones together with placement groups, you need to make sure that the VMs in the placement group are also all in the same availability zone.
 >
 
@@ -75,4 +77,4 @@ If the VM is part of the Availability set, you need to add the availability set
 
 ## Next steps
 
-You can also use the [Azure PowerShell](proximity-placement-groups.md) to create proximity placement groups.
+You can also use the [Azure PowerShell](proximity-placement-groups.md) to create proximity placement groups.