Improve RDS cloudmigration documentation

playbooks/roles/edx_service_rds/tasks/main.yml

@@ -35,7 +35,7 @@
 # Example play:
 #
 # export AWS_PROFILE=sandbox
-# ansible-playbook -c local -i 'localhost,' edx_service_rds.yml -e@~/vpc-test.yml -e@~/e0dTest-edx.yml -e 'cluster=test'
+# ansible-playbook -i 'localhost,' edx_service_rds.yml -e@/path/to/secure-repo/cloud_migrations/vpcs/vpc-file.yml -e@/path/to/secure-repo/cloud_migrations/dbs/e-d-c-rds.yml
 #
 # TODO:
 # - handle db deletes and updates