GenerateDoccReference: group arguments by section like CLI help#885

amanthatdoescares wants to merge 3 commits into

apple:mainapple/swift-argument-parser:mainfrom

amanthatdoescares:feature/722-docc-section-headingsamanthatdoescares/swift-argument-parser:feature/722-docc-section-headingsCopy head branch name to clipboard