Action Directory Link - https://actions.getdrafts.com/a/1q9
A slight variation of @pdavisonreiber‘s Markdown Footnote Action which uses reference links formatted without ^ or : at the bottom of the document. ([1] instead of [^1]:)
The original action’s description, modified accordingly:
Insert Markdown footnote [^1] in the text and add [1] at the end of the document. If there is text selected, move it to the footnote at the end of the document. Numbers used for references automatically increment each time.