fix command to check sdn migration status

fix command to check sdn migration status

Adding angle brackets to the 'ocm get cluster /migrations command

removing $ sign

Author: jrosental

modules/migrate-sdn-ovn-osd.adoc

@@ -106,6 +106,6 @@ $ ocm post /api/clusters_mgmt/v1/clusters/{cluster_id}/migrations <1>
 
 [source,terminal]
 ----
-$ ocm get cluster $cluster_id/migration <1>
+$ ocm get cluster <cluster_id>/migrations <1>
 ----
-<1> Replace `$cluster_id` with the ID of the cluster that the migration was applied to.
+<1> Replace `<cluster_id>` with the ID of the cluster that the migration was applied to.