DOC: update fixing unknown parameters errors (error code PR02)

[tolaa001]

• Documentation update fixing some of the methods with a PR-2 error code which involved updating **kwds to **kwargs

• No tests required

• The data frame.plot methods now have the docstring arguments updated from **kwds to **kwargs to match the method signature and exclude them from the PR02 errors:

[jbrockmendel]

should the "optional" part be consistent across all of these?

[datapythonista]

thanks for fixing those, lgtm

but if you don't mind removing the optional in this same PR, that would be great (also ok in a follow up)

[tolaa001]

Thanks for approving this Marc 😊. I will do this once am reunited with my laptop tomorrow evening.

Also thanks for all your advise at the Iwoca meet up last week.

[WillAyd]

Any reason why we don't change all instances of kwds to kwargs in this PR?

[datapythonista]

I'm not sure what's wrong with the CI. You'll have to debug scripts/validate_docstring.py. We don't want **kwargs to have a type in the docstring, if the script is failing because of it, it's a bug that needs to be fixed. Feels a bit weird that seems to be failing just for some of the cases.

[tolaa001]

@datapythonista can you please providing me with some guidance as I am unsure why the CI build is failing?
I have fixed the reason it was failing yesterday, it was because I had "" before kwargs`

[jorisvandenbossche]

@tolaa001 Thanks a lot for the contribution!