DOC: Fixed PR08 docstring errors in pandas.DataFrame

[jb8429]

This relates to: 27977. I have fixed the doc PR08 formatting issues for:

pandas.DataFrame.insert: Parameter "column" description should start with a capital letter
pandas.DataFrame.apply: Parameter "raw" description should start with a capital letter
pandas.DataFrame.pipe: Parameter "func" description should start with a capital letter
pandas.DataFrame.pipe: Parameter "args" description should start with a capital letter
pandas.DataFrame.pipe: Parameter "kwargs" description should start with a capital letter
pandas.DataFrame.corr: Parameter "method" description should start with a capital letter
pandas.DataFrame.corrwith: Parameter "axis" description should start with a capital letter
pandas.DataFrame.corrwith: Parameter "method" description should start with a capital letter
pandas.DataFrame.drop_duplicates: Parameter "keep" description should start with a capital letter
pandas.DataFrame.duplicated: Parameter "keep" description should start with a capital letter
pandas.DataFrame.idxmax: Parameter "axis" description should start with a capital letter
pandas.DataFrame.idxmin: Parameter "axis" description should start with a capital letter
pandas.DataFrame.unstack: Parameter "fill_value" description should start with a capital letter
pandas.DataFrame.plot: Parameter "kind" description should start with a capital letter
pandas.DataFrame.plot: Parameter "style" description should start with a capital letter
pandas.DataFrame.to_feather: Parameter "fname" description should start with a capital letter
pandas.DataFrame.to_msgpack: Parameter "path" description should start with a capital letter
pandas.DataFrame.to_msgpack: Parameter "append" description should start with a capital letter
pandas.DataFrame.to_msgpack: Parameter "compress" description should start with a capital letter
pandas.DataFrame.to_clipboard: Parameter "excel" description should start with a capital letter

• tests added / passed
• passes black pandas
• passes git diff upstream/master -u -- "*.py" | flake8 --diff

Will continue to work through all PR08 docstring errors.

[pep8speaks]

Hello @jackbicknell14! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2019-09-29 08:39:19 UTC

[gfyoung]

So close! If you can fix the merge conflict.

[jb8429]

So close! If you can fix the merge conflict.

Thanks for the help @gfyoung

Have updated and resolved the merge conflict. Please could you also check out my other PR for similar doc issues in PR28571? I think that one is all good to go.

Thanks!

[WillAyd]

Thanks @jackbicknell14 !