moving from XSD to RNG

i have no idea why now that i look at the pull request, it shows that again there are TXT/HTML and other stuff in it. it seems i am unable to create the workflow you'd like to see. as much guidance as possible would be very much appreciated, while i am trying to cancel this pull request. i see this as part of a git/github learning experience, but a little higher ratio of experience and results would make things a little more fun.