Docstring Format

[reidsunderland]

Since Sphinx has been setup, we can use docstrings to document the code.

We should choose a format that we want to use for docstrings. @MagikEh found this site that demonstrates some of the standard formats.

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This is an example of a Google formatted docstring for a class:

Example for a function:

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IDEs like PyCharm can also automatically insert pre-formatted docstrings, and should support any of the linked styles.