message: fix: syntax in migration guide
diff: @@ -93,7 +93,7 @@ import { Storage } from '@stacks/storage';
  const appConfig = new AppConfig();
  const userSession = new UserSession({ appConfig });
  -const storage = new Storage(userSession);
  +const storage = new Storage({userSession});
  storage.putFile('my_file.json', my_content));
  storage.getFile('my_file.json').then((file) => {
  