Zettelmarkup: Footnotes manual manual zettelmarkup zettelstore zmk 00001007010000 00001007040000 00001007040300 00001007990000 00001007010000 00001007040000 00001007040300 00001007990000 1 (c) 2020-present by Detlef Stern 20210810155955 en EUPL-1.2-or-later 20220218130100 20220218130100 public