message: modify RFC template to use FAQ format
diff: @@ -22,7 +22,7 @@ Describe effects on end users here.
  Describe implementation details or other things here.
  -## Alternatives and future work
  +## Frequently asked questions
  -Various downsides, rejected approaches, or other considerations.
  +Use this section to add in design notes, downsides, rejected approaches, or other considerations.
  