Process for Design Docs?

What does “accepted” mean in this case? Who does the accepting? Is it
consensus? Consensus among who?

I have two alternatives to the consensus rule:

  1. Something gets “published” (i.e., merged into the repo) if at least
    one other (non-author) Stan developer endorses the design doc (and the
    original authors declare it finished).

  2. I can also imagine having an appointed editor who decides when a
    design doc is finished.