front facing docs page

[JessicaS11]

Turn the front-facing documentation page into a one-stop-shop of information about icepyx (both on GitHub and ReadTheDocs). @fspaolo suggested Jekyll's page as an example - everything is captured simply and easily without scrolling. We'd like to implement something analogous for icepyx - all the resources easily accessible in the first place people see!

[fspaolo]

An alternative to Jekyll is Hugo. Both are well maintained and have a large community. All we need to do is select a theme from their galleries and add it to the icepyx repo as GitHub Pages.

Jekyll themes: https://jamstackthemes.dev/ssg/jekyll/

Hugo themes: https://themes.gohugo.io/

(you can loose yourself choosing... I warn you)

[weiji14]

A few projects in the PyData ecosystem have been moving towards using the PyData Sphinx Theme. E.g. geopandas (geopandas/geopandas#1564) and xarray (pydata/xarray#4835). The 'front page' seems fairly customizable, and it'll probably be easier to port things over from the current Read the Docs Sphinx Theme icepyx is using.

If this looks like a good plan, I can open a Pull Request for this and get a demo up and running 😄