Codebook table is invisible when readthedocs page is in light mode

[danibene]

The codebook is white: https://github.com/neuropsychology/NeuroKit/blob/45c9ad90d863ebf4e9d043b975a10d9f8fdeb06b/docs/codebook.rst?plain=1#L23-L27

So when the page is in light mode it looks like a table with no values:

One easy fix could be making it a color other than black or white?

[DominiqueMakowski]

@DerAndereJohannes