Array repetition expression proposal.
Minor edits for clarity/linking.
Typo corrections and small edits for clarity.
One more typo.
Edits suggested by mdinger, quote code correctly.
Change proposal from [N of T] to [T; N].
Fix typo in summary.
Merge branch 'master' of https://github.com/quantheory/rfcs into quantheory-master
Merge branch 'quantheory-master'