Example in README doesn't typecheck

[fairflow]

lakefile: require Qq from git "https://github.com/leanprover-community/quote4" @ "master"
imported and opened Qq fine; simple examples work but:

def betterApp {α : Q(Sort u)} {β : Q($α → Sort v)} (f : Q((a : α) → $β a)) (a : Q($α)) : Q($β $a) := q($f $a)

error in Q((a : α) → $β a)) reported:
unsupported implicit auto-bound: α is not a level name
humble apologies if this is a simple user error!

[edegeltje]

similarly, it seems that the List ((u : Level) × (α : Q(Sort u)) × List Q(Option $α)) example doesn't work. The cause for this seems to be that Option takes a Type argument, not a Sort one.