Apply suggestions from code review

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

Author: jab-rh

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

@@ -467,14 +467,14 @@ oc get frrconfigurations.frrk8s.metallb.io -n "${OLD_NAMESPACE}" -o json |\
   oc create -f -
 ----
 
-. To execute the migration script, run the following command:
+. To run the migration script, enter the following command:
 +
 [source,terminal]
 ----
 $ bash migrate.sh
 ----
 
-. To confirm that the migration succeeded, run the following command:
+. To verify that the migration succeeded, enter the following command:
 +
 [source,terminal]
 ----