Bibliography directive

[kalekundert]

I often create ad-hoc bibliographies using footnotes and :doi: roles. This isn't so bad, but it does have some annoyances:

• The footnote syntax is weird and hard to remember.
• The RTD theme doesn't line up the footnotes nicely.

A custom bibliography directive could address both of these issues. The challenge would be integrating with the footnote system, so the same [AuthorYear]_ syntax could continue to be used in the document.

Alternatively, I could maybe play with the CSS to render the footnotes more nicely.