I just want to make a simple change to the README

It took me too long to figure out what the proper name for my board was when using the premade config. Sorry, I don't know the proper way to submit this sort of thing. I was going to make a PR on GitHub, but then I saw your message asking not to do that. I don't know how to properly make a patch file, so attached is the edited version of the README. I just added one line.