HCIDOCS-228: Noted that when deploying on bare metal, VLAN format is <interface_name>.<vlan-number>.

Author: johnwilkins

modules/virt-example-vlan-nncp.adoc

@@ -39,7 +39,7 @@ spec:
 <1> Name of the policy.
 <2> Optional: If you do not include the `nodeSelector` parameter, the policy applies to all nodes in the cluster.
 <3> This example uses a `hostname` node selector.
-<4> Name of the interface.
+<4> Name of the interface. When deploying on bare metal, only the `<interface_name>.<vlan_number>` VLAN format is supported.
 <5> Optional: Human-readable description of the interface.
 <6> The type of interface. This example creates a VLAN.
 <7> The requested state for the interface after creation.