This is a copy of the ProseMirror/prosemirror-menu repo files
which suggest working from a fork of this.
These changes include the ability to select callouts
from the menubar.
Attempted adding callouts, which have the challenge of being shown via
HTML within markdown content. Got stuck on parsing back to the state
from markdown.
- Got base setup together with WYSIWYG/Markdown switching, where HTML is
the base content format.
- Added some testing routes/views for initial development.
- Added some dev npm tasks to support editor-specific actions.
