Improve When not to codemod guide

[danieldelcore]

https://www.codeshiftcommunity.com/docs/when-not-to-codemod

This guide should also recommend, other migration strategies:

It’s quite hard to follow references across module boundaries, it is possible if you consider requiring, parsing and mutating that file in your codemod, but it’s not something i’ve done personally so not entirely sure it will work for you.

- Create a facade prop that will make your API backward compatible for a limited time.
- Create a eslint rule to warn/guard against its current/future use
- Write product code in a more static analysable way
- Prompt for human input

Also consider changing the name to something more friendly