Update menu.js
Update menu.js

tgecho/prosemirror,mattberkowitz/prosemirror,tgecho/prosemirror,kiejo/prosemirror,bengler/prosemirror,kiejo/prosemirror,mattberkowitz/prosemirror,bengler/prosemirror,salzhrani/prosemirror,tecnogram888/prosemirror,salzhrani/prosemirror,salzhrani/prosemirror,adrianheine/prosemirror,adrianheine/prosemirror,kiejo/prosemirror,tzuhsiulin/prosemirror,tzuhsiulin/prosemirror,tzuhsiulin/prosemirror,adrianheine/prosemirror,jacwright/prosemirror,tecnogram888/prosemirror,ProseMirror/prosemirror-markdown,jacwright/prosemirror