Add @x-state/fsm XState comparison in the wiki

[ibrahimcesar]

Hi,

First great work! Can't wait to start use this on my projects from now on.

I just want to suggest, if you find suitable, that in the wiki page in comparison with XState, that if for some reason people are looking for a minimal implementation of XState for another use-cases that are not React (lambda is one I could think on the top of mind), they can use @xstate/fsm.

Thanks and again congrats on the great work!

[cassiozen]

Thanks.

The gist is:

• Right now both libs are similar in feature set - but this might change in the future as we're currently working on hierarchical state machines support.
• They're both small, so if size is your main consideration you can't go wrong with any.
• Pros: This is more react idiomatic, and has a great TypeScript support with automatic type inference.

Looking for help to structure this in a small piece of text we could put on the wiki. Any volunteers? @ibrahimcesar, @mtsknn, @tangdw.