Fixing changes related to sample CLI command

Author: shriram-muthukrishnan

articles/postgresql/migrate/how-to-migrate-single-to-flexible-cli.md

@@ -112,7 +112,7 @@ az postgres flexible-server migration create [--subscription]
 For example:
 
 ```azurecli-interactive
-az postgres flexible-server migration create --subscription 11111111-1111-1111-1111-111111111111 --resource-group my-learning-rg --name myflexibleserver --migration-name migration1 --migration-mode  offline --properties "C:\Users\Administrator\Documents\migrationBody.JSON"
+az postgres flexible-server migration create --subscription 11111111-1111-1111-1111-111111111111 --resource-group my-learning-rg --name myflexibleserver --migration-name migration1 --properties "C:\Users\Administrator\Documents\migrationBody.JSON" --migration-mode offline
 ```
 
 The `migration-name` argument used in the `create` command will be used in other CLI commands, such as `update`, `delete`, and `show.` In all those commands, it uniquely identifies the migration attempt in the corresponding actions.