what the hell does that have to do with making a brush?
Your tutorial mentions it: "Tip: Dodging and burning make fore great depth, and this type of brush is nothing less than awesome for doing just that."
I've heard the term before on this site and was just wondering what it meant.
Using a custom brush to dodge and burn.. or
you can burn slightly on the brush layout before finalizing a brush to adjust opacity before saving it as a brush..
but that is in the tip, and has nothing to do with the tutorial it's self. Dodge and burn are highly useful tools though.. good ones to practice a lot.