Add visualization on the landing page showing data of the different banks

[LinguList]

something simple, maybe a leaflet.js with geojson, where one can click and see whether there is data on it.

Or are there any better visualization ideas?

[xrotwang]

Sounds about ok. This can be based on the code I have in clld/glottolog:
https://github.com/clld/glottolog/blob/b48aa529dd9c7c8775bbc1caa163e442aa7b489e/pyglottolog/commands.py#L29

[xrotwang]

So this would be the "Glottobank documentation status browser", I guess.