Fix black action arguments + formatting

[oscargus]

Seems like black has changed the argument handling. I got this on my newly create repo:

Warning: Unexpected input(s) 'args', valid inputs are ['options', 'src', 'black_args', 'version']

https://black.readthedocs.io/en/stable/integrations/github_actions.html gives the changes in this PR. src is not really required since . is the default, but I included it for clarity in case someone want to change it later.

The second commit fixes two issues that black points out in the generated code.

Edit: third commit fixes doc formatting.

Let me know if I should squash these into a single commit. Updating as I go along making my project pass the tests with the default setup.

[ianhi]

This is great thanks!

Also in #8 I've added a pre-commit config which could obsolete the lint action. what do you think?

[ianhi]

Let me know if I should squash these into a single commit. Updating as I go along making my project pass the tests with the default setup.

These are distinct changes so let's not do that.

[oscargus]

Probably not experienced enough to have strong opinions on this.

Regarding pre-commit I personally have some issues running it on Windows due to being too lazy to set it up properly (develop using conda, but doing git using the bash-prompt from Git for Windows, so they do not have the same Python environments). Running it on the CI is a different thing though.

[ianhi]

sorry this dropped off my radar. looks good thanks!