Add and document a good way to render parameter documentation

[adamtheturtle]

Thank you for this package 🙏

There are a few major ways to write Python docstrings, the default rST way:

:param path: The path of the file to wrap
:type path: str

/Users/adam/Desktop/Autobazel screenshot.png
and the Google way:

Args:
    path (str): The path of the file to wrap

The Google way is supported using sphinx.ext.napoleon.

The documentation in this package's examples is a mix of both, and not rendered nicely.
I have attached a screenshot of this package's documentation.
In particular, the word "Args" shows as inline in the docstring and the word "Param" is capitalised and rendered.

[adamtheturtle]

As a workaround I'm using:

Args:
    :path: The path of the file to wrap

Note the extra : before path:.