References for citations vs. further reading

[fredrik-bakke]

I agree that the way we display/handle references is not the best way. It's probably a good idea to take some inspiration from $n$Lab. While they're probably not entirely consistent on how they organize references, we can shop a bit around and see what we like. For instance, at inaccessible cardinal (which is just the first page I stumbled upon) they use the references section both for citations and further reading, but they include short explanations for context and summary of the references.

In any case this is clearly outside the scope of this PR so I'll promote this thread to an issue.

Originally posted by @fredrik-bakke in #1160 (comment)