chore: docstring check

[JulesBelveze]

This PR aims at adding some simple dosctring checks as part of pre-commit hooks and CI checks

The checks are not exhaustive but they are a good starting point and we can iterate over it as we go.

[JulesBelveze]

@ArshaanNazir @chakravarthik27 @Prikshit7766 @RakshitKhajuria could you guys have a quick look at the classes implemented within the transform/ directory and add a 2-3 lines description on the one you implemented please? For some of them it's quite blurry what they are aiming to achieve and what the transformation correspond to.. even the difference between the transform and run methods is not straightforward 😃

We need to make it quite obvious what the difference between Fairness, Robustness, Representation, ... is

(Feel free to directly push on this branch)

[JulesBelveze]

@ArshaanNazir @chakravarthik27 please add your review, we will improve the docstrings in a separate PR 😃

[ArshaanNazir]

@ArshaanNazir @chakravarthik27 please add your review, we will improve the docstrings in a separate PR 😃

Looks good. Sure, for the docstrings explaining various classes, we can create another PR