message: docs(README): refine universal fetching examples
diff: @@ -291,14 +291,12 @@ In client-side, don't forget to invoke the action(s) in `componentDidMount` or `
  ```js
  // If you use React class component
  -
  componentDidMount() {
  // Invoke your redux action(s) for client rendering
  this.props.myReduxAction();
  }
  // If you use functional component
  -
  useEffect(() => {
  myReduxAction();
  }, [])
  