[Feature] document cave fish atlas

[alessandrofelder]

Is your feature request related to a problem? Please describe.
We're about to add a cavefish atlas to the Atlas API.

Describe the solution you'd like
We should at least mention this in the list of available atlases (and also maybe write a blog post/announce in some other way?)

Describe alternatives you've considered

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Additional context

brainglobe/brainglobe-atlasapi#277

[adamltyson]

I think a short blogpost would be nice. It could include some screenshots, and it also makes advertising elsewhere easier (we can just link to the blog).

[adamltyson]

Reopening this because the atlas isn't listed here.