Add configuration for git path

[marianafantini]

We've added a config git_path that can be used to specify the folder that contains the git repository. If this configuration is not set, the default will be ., which was the previous behavior
We've added this because our git repository info is inside a docs folder, different from the mkdocs default structure, and that configuration would help for situations like that

[williammizuta]

We didn't understand why the test is failing on Windows. Can someone help us to understand what is broken?

[timvink]

Hi @marianafantini and @williammizuta,

Thanks for the contribution! Much appreciated :)

Some comments:

• The windows error is probably related to a change in the windows gitlab runner. I added a workaround hack in Extend unit tests to cover more python versions #32.
• The use-case is valid, but I would prefer to keep the number of options as low as possible (and thus the plugin small & simple to use). Because we use git on files in the docs/ folder, it makes sense to start looking there for a .git folder and traverse upwards. I went ahead and implemented that in Custom git path #33, along with a matching unit test. I do realize that will make this PR redundant, sorry!

I'll release the changes to PyPI today, let me know if this fixes your use-case?

[williammizuta]

We have tested the new version and it worked for us. Thank you for the support