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


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. Any reason why we don't change all instances of `kwds` to `kwargs` in this PR? 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. @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` @tolaa001 Thanks a lot for the contribution!