Format doc strings

[janosh]

plus minor formatting and 1 deprecation of NRANDOM -> n_random in coordination_geometry_symmetry_measures_fallback_random

[esoteric-ephemera]

@janosh : this broke some code in pymatgen-analysis-diffusion and thus also in emmet, particularly the change from symmop to symm_op in Structure.apply_operation. Can we announce breaking changes or avoid them if they're made for code style?

[shyuep]

@janosh Seriously, stop breaking stuff with this kind of cosmetic stuff. I am going to insist that you maintain backwards compatibility. Otherwise, I am revoking your write privileges and you will submit PRs like everyone else.

[janosh]

@esoteric-ephemera sorry about the hassle and thanks for taking the time to fix!

@shyuep i'll be more careful. i realized that this change could be breaking and did a search for symmop being passed as keyword in pymatgen and atomate2 but ofc that leaves a lot of places where it could matter. just to clarify though, i did submit a PR for this like everyone else and CI passed so I doubt a reviewer would have noticed.