In the text is a small ` [1]`
and here, at the end, it renders links back to the locations:

    Footnotes

    [1]	(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) Not implemented yet