Apply suggestions from code review

Co-authored-by: Eliska Romanova <eromanov@redhat.com>

Author: jab-rh

release_notes/ocp-4-19-release-notes.adoc

@@ -481,7 +481,7 @@ $ bash migrate.sh
 $ oc get frrconfigurations.frrk8s.metallb.io -n openshift-frr-k8s
 ----
 
-After the migration is complete, you can remove the FRR-K8s custom resources from the `metallb-system` namespace.
+After the migration is complete, you can remove the `FRR-K8s` custom resources from the `metallb-system` namespace.
 
 For more information, see x!ref:../networking/bgp_routing/about-bgp-routing.adoc#about-bgp-routing[About BGP routing].