syntax
( define-footnote footnote-idfootnote-part-id)
Beware that any content passed to footnote-id will occur twice in at least an intermediate form of the document, and perhaps also in the rendered form of the document. Consequently, the content passed to footnote-id should not bind link targets or include other one-time declarations.
@title{MonthsoftheYear}@section{January}Januaryhas31days.@section{February}Februaryhas28daysincommonyears.@my-note{Inleapyears,Februaryhas29days.}@make-my-note[]@section{March}Marchhas30days.