add types to urlextract

[georgettica]

I tried on my repo to run mypy file.py
https://github.com/python/mypy

 error: Skipping analyzing "urlextract": module is installed, but missing library stubs or py.typed marker
 note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

[lipoja]

Hello,
that is because urlextract does not support type checking yet.
I am planning to do it, but it is not on high priority list. # PRs are welcome ;).

[georgettica]

I'll see how I can learn and contribute.

If you get there before me please note it in this issue?

Thanks in advance and thanks for the warm response :)

[lipoja]

I appreciate any contribution and also reporting any issue.
It keeps me improving this library. And I am glad that there are people using it and also contributing and improving the code.

Let's agree that any of us will write a comment here once we start implementing type hints (mypy support).

Thank you!