Updates to DEPs 1, 10, and 12 to reflect current governance

[jacobian]

@andrewgodwin

(also, helpful note, we have a @steering_council mention that you can use for summoning us for votes or other reasons)

I saw that group, but when I tried that I got an error:

Anyway, thanks. I’ll give this a few more days for other folks from the SC to weigh in if they want, and then merge this.