The current documentation states that it uses commonmarker as a wrapper for cmark-gfm, when in fact commonmarker is a wrapper for comark. comark has better support for gfm than cmark-gfm, and there are a number of commonmarker's options that are only supported by comark. Is it possible to change to use comark instead of cmark-gfm? cmark-gfm is no longer updated.