You read that correctly, Mr. Romero released some screenshots & a text file describing them that was inititaly released in 1995, to show off Quake. I remember seeing this decades ago when I was looking in to Quake.
Hey, that brings up a neat idea! A retro Quake review! :) Expect that later today! :D Happy Quake Day! :D
Thanks to GameHacker for the heads up.