This is the working area for the draft of the XTT 1.0 protocol.
You will need make, kramdown-rfc26291
(https://github.com/cabo/kramdown-rfc2629), and xml2rfc
(https://xml2rfc.tools.ietf.org/).
Run make lib/main.mk to initialize the git submodules.
Run make to render the *.txt and *.html formats.