I don’t think such a tutorial exists. The thing about ProseMirror is that the library, out of the box, is too minimal to really use without building something on top of it—it’s more of a skeleton for various kinds of editors than an actual editor. So one of the reasons our docs don’t try to target people without much experience is that such people are likely to have a bad time with the library anyway—the task of integrating it will require quite a lot of additional programming.
I’ve been hoping that people would build more approachable editor components on top of ProseMirror, but so far only tiptap really does that, and that uses Vue.js so I’m not sure it’d be what you’re looking for.