Write a note about @api private
Write a note about @api private

Closes #223

lsegal/yard,ohai/yard,lsegal/yard,amclain/yard,amclain/yard,thomthom/yard,herosky/yard,jreinert/yard,travis-repos/yard,travis-repos/yard,amclain/yard,herosky/yard,herosky/yard,alexdowad/yard,alexdowad/yard,lsegal/yard,thomthom/yard,jreinert/yard,iankronquist/yard,ohai/yard,alexdowad/yard,iankronquist/yard,thomthom/yard,jreinert/yard,iankronquist/yard,ohai/yard