the default program entry for projects created using create-react-app is index.js,. The default home page is public/index.html. But I want to do multiple web pages in the project, how can I associate index.js and index.html in the about directory?

that is, how can I use ReactDOM.render (< App / >, document.getElementById ("root")); component rendering to about/index.html) in about/index.js?

Xiaobai has just learned react, not to spray. I hope my friends can answer, thank you!