How to add footnotes
You can use footnotes thus, Babus¹
Here’s the code:
The text^1 (the caret puts the 1 as a superscript) and then you type the text of the footnote in the text below using a  symbol.
I usually like to add a "separator" (three dots or ellipses, "..." you can select from the style elements in Medium. For the moment, this also serves for referencing.
 those despicable beings that still hang out in the twenty first century with the same traits. Now in social media.