useRedux.jsx

// Previously
import React from 'react';
import { updateTitleAction } from './actions';
import { connect } from 'react-redux';

const Component = props => <button onClick={props.updateTitle}>{props.content}</div>;

export default connect(state => state.content, { updateTitle: updateTitleAction })(Component)
                       



// With Redux hooks! (you could have also returned an object both as the 1st or the 2nd argument of `useRedux`)
import React from 'react';
import { updateTitleAction } from './actions';
import { useRedux } from 'react-redux';

const Component = props => {
  const [content, updateTitle] = useRedux(state => state.content, updateTitleAction);
  
  return <button onClick={updateTitle}>{content}</div>;
}

Seems the variables in the "With Redux hooks!" should have not props.

-return <button onClick={props.updateTitle}>{props.content}</div>;
+return <button onClick={updateTitle}>{content}</div>;

Yup, you are right!

Sorry about that and thanks for pointing that out :)