Testing footnotes

OK, gotta try this.
Footnote reference:
The luggage^[a] is here.
The footnote will go wherever you put the following (and not,
automatically at the bottom of the page).
Footnote:

^[a]
The most terrifying character in the Discworld.

The superscript ('a' in this case) is a link to the footnote, and there is a link back, as well. Ah! So the 'footnotes' can be placed anywhere else on the web. They are out-in-webspace-notes, webnotes, duck-foot-notes.