DOC: warnings and remove HTML

[TomAugspurger]

Couple comments in #11610 (comment)

• warning in the whatsnew
• warning in the Styler docstring
• removes generated HTML version of the notebook, that's built as part of the doc build.

Building the docs now to double check, I'll merge when those are good.

[jorisvandenbossche]

Looks good!

[jreback]

@jorisvandenbossche IIRC we have ipython as a requirement of the doc-builds, should also add ipython-notebook (or jupyter)

[jorisvandenbossche]

in principle, it's not ipython notebook, but just ipython for <4 (nbconvert it included, so that is OK) or nbconvert for >= 4

[jorisvandenbossche]

But maybe safer to use ipython nbconvert instead of jupyter nbcnvert in make.py (as the first one works for all versions, the jupyter one only for the more recent)

[jorisvandenbossche]

@TomAugspurger did you also check the api docs for the new styler if they render work correctly?

[TomAugspurger]

Yep, the warning shows up there, things look good. I can upload the generated version somewhere if you want.

[TomAugspurger]

Ahh, shoot found one mistake. I forgot to change Styler.set to Styler.use in api.rst. Is it easiest for you to change that?

[TomAugspurger]

This is line 1713 in the current version of master, not sure how to link to it since GH renders the rst. Styler.set -> Styler.use

[jorisvandenbossche]

no, you can go ahead and change it (I still have to switch from windows to linux for the final build)