This PR introduces an initial implementation of footnotes:
[^a]
[^a]: a footnote
NOTE: currently this only supports single line footnotes,
but it is intended that this will eventually support multi-line:
[^a]
[^a]: a footnote
with a block below, that can contain
> quotes
and other block/span elements
and is terminated on the first unindented line,
that occurs after an empty line.
This PR introduces an initial implementation of footnotes:
NOTE: currently this only supports single line footnotes, but it is intended that this will eventually support multi-line: