Figured it out! Just have to use it and work it is all. Sometimes the best answer on this forum is no answer at all, it forces us to explore our wiki and the levers and buttons.
The Biblio code is an arbitrary text entry that gets related to the reference in the text of the wiki. The reference number is positioned next to the text and related to the Bibliography, typically at the bottom of the page, but you can place the Bibliography anywhere you want.
In my case I made a wiki page about a famous woodworker named Tage Frid.
I have several Bibliographic references, so my Biblio codes look something like this:
Unless there is a best practices for this, I think I have it right.