Provide migration guide

[Shinigami92]

Clear and concise description of the problem

We need a migration guide where we can link to if folks ask us how to switch to the new package.

Suggested solution

Provide a find-and-replace regex pattern that can be used e.g. in VSCode
and/or
Provide a sed-command that can run over a whole file structure and replace the import statements.

Alternative

No response

Additional context

We need that for require and import syntax