See [cmarkit release announcment](https://discuss.ocaml.org/t/ann-cmarkit-0-1-0-commonmark-parser-and-renderer-for-ocaml/11900) and also the [example md<->mld](https://discuss.ocaml.org/t/poc-ocamlmark-an-ocamldoc-to-commonmark-bi-directional-translation/11901). Will also mostly resolve https://github.com/mseri/md2mld/issues/11
