CNV-33018: Removed namespace reference from linux bridge yaml

Author: Shikha Jhala

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

@@ -38,11 +38,11 @@ spec:
           pod: {}
         - name: bridge-net <2>
           multus:
-            networkName: network-namespace/a-bridge-network <3>
+            networkName: a-bridge-network <3>
 ----
 <1> The name of the bridge interface.
 <2> The name of the network. This value must match the `name` value of the corresponding `spec.template.spec.domain.devices.interfaces` entry.
-<3> The name of the network attachment definition, prefixed by the namespace where it exists. The namespace must be either the `default` namespace or the same namespace where the VM is to be created. In this case, `multus` is used. Multus is a cloud network interface (CNI) plugin that allows multiple CNIs to exist so that a pod or virtual machine can use the interfaces it needs.
+<3> The name of the network attachment definition.
 
 . Apply the configuration:
 +