I didn't know how to name this question but here is the thing. I installed React with NPM: npx create-react-app my-app and I start app with npm start. After that localhost:3000 opens. The thing is html file in folder public isn't connected anyhow to the script.
I want to serve the development with package called "serve". The only thing there is nothing to serve, the HTML file in public isn't updated at all while I can't serve App.js or anything like that.
Is it required to use CDN links for this task? Or how else it is possible to connect React to that generated html file?