To create a footnote in Markdown, you will need two things, a superscript number and a footnote reference. A superscript number is created by placing a caret followed by a number inside a pair of square brackets.
A footnote reference is created by adding another caret and the same number used in a superscript inside square brackets. It is followed by a colon and text.
Note: GitHub flavored markdown does not support footnotes.
This is an example of how to create a footnote[^1] in Markdown. [^1]: First Footnote
This is an example of how to create a footnote1 in Markdown.