Fix double whitespace
Fix double whitespace

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