[docs] Improve Help for People Doing a Lazy Migration for HOCs

### The Problem
From what I've seen [in the docs](https://cssinjs.org/react-jss/?v=v10.5.1), there doesn't seem to be much _straightforward_ assistance for those upgrading React JSS when it comes to HOCs. Some useful links are posted, but it would be helpful if the user didn't have to learn/read up on all the topics on their own.

### The Solution
Instead of redirecting the user to other articles, the docs could provide an example of creating a custom HOC in JS/TS that implements the new hooks API (in addition to providing links for those interested in learning more).

### Some Thoughts/Concerns
1. If a HOC example was provided that used hooks, it may not be easy to provide a [simple] example that's compatible with decorators. (If decorators aren't a focus/concern, then this isn't a problem.)
2. I wasn't sure if an example solution was excluded to avoid being opinionated. Thoughts or clarity on this would be helpful.

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- [x] **I am willing to implement this**