Fix some docs
Fix some docs

jacwright/prosemirror,salzhrani/prosemirror,tzuhsiulin/prosemirror,adrianheine/prosemirror,mattberkowitz/prosemirror,adrianheine/prosemirror,salzhrani/prosemirror,kiejo/prosemirror,jacwright/prosemirror,tzuhsiulin/prosemirror,adrianheine/prosemirror,salzhrani/prosemirror,kiejo/prosemirror,mattberkowitz/prosemirror,tzuhsiulin/prosemirror,kiejo/prosemirror