Hello!
I am currently finishing up a forum for a group, and some of my testers (to see if the forum works) have been confused by what is an authenticator app--as well as what are U2F, OTP and backup keys. To be extra cautious for future forum members, I would like to be able to know what file I can edit in the extension that belongs to the module below:

--so that way, I can write a small paragraph with an explanation of the terms and the necessary apps for 2FA. I myself didn't know what were U2F or OTP until I googled them (as I already use an authenticator app and know of backup keys).
Any help appreciated. Thank you!