Document polars in reference guide?

[MarcoGorelli]

Is your feature request related to a problem? Please describe.

hvplot works really well with polars (as far as I've tried taking it at least) but it barely seems mentioned in the docs

In particular, I'm struggling a bit with which page to link to in pola-rs/polars#13238

Describe the solution you'd like

Maybe a Polars section would be added here
https://hvplot.holoviz.org/reference/index.html#pandas
?

Or the existing pandas one would be renamed "pandas and polars"?

Describe alternatives you've considered

Additional context

Add any other context or screenshots about the feature request here.

[maximlt]

Hey @MarcoGorelli, yep you're right this heading should definitely be updated to be more inclusive to the tabular data sources hvplot integrates with. With something as simple as tabular or a more explicitly listing pandas/polars/ibis/cudf/etc. Depending on what is chosen, we may have to slightly modify our sphinx gallery extension to give us the freedom to modify the heading text (IIRC currently it's just the folder name formatted as a title), but that should be straightforward.

Generally, there's plenty of work to do to improve hvPlot's documentation, that's definitely something I want to push for the coming year, in particular the reference/visual API.

(I know you've pinged me on another issue on your repo, I'll get back to you early in January 🎅 )