Merge pull request #31951 from mgarrellRH/CNV10760

JIRA CNV-10760 Adding information about referencing NAD definitions in different namespaces

modules/virt-attaching-vm-secondary-network-cli.adoc

@@ -39,15 +39,15 @@ spec:
           pod: {}
         - name: bridge-net <1>
           multus:
-            networkName: <a-bridge-network> <2>
+            networkName: <network-namespace/a-bridge-network> <2>
 ...
 ----
 <1> The name of the bridge interface. This value must match the `name` value of the corresponding `spec.template.spec.networks` entry.
 <2> The name of the network attachment definition.
 +
 [NOTE]
 ====
-The example virtual machine is connected to both the `default` pod network and `bridge-net`, which is defined by a network attachment definition named `a-bridge-network`.
+The example virtual machine is connected to both the `default` pod network and `bridge-net`, which is defined by a network attachment definition named `a-bridge-network`. If the network attachment definition is not in the same namespace as the VM, you must combine the namespace and the network name to create the network attachment definition name.
 ====
 
 . Apply the configuration: