docs: cli reference

[ljcolling]

added cli arguments to docs

[tlestang]

Thanks, don't you need to pip install cats in the workflow? In case autodocs needs to import cats.__init__. I can see that's one of the reason the API reference isn't being generated (#59) by sphinx (plus the fact that module names are outdated after merging #49)

[ljcolling]

Thanks, don't you need to pip install cats

Ah yes you do. I'll update it

[ljcolling]

Ok, I think it should work as expected now

[tlestang]

Yes, I pushed your changes to my fork and built it from there: https://tlestang.github.io/cats/api-reference.html So anyone can have a look at the rendered version.