Please consider building nodejs-ronn for EPEL8.
Someone needs to build markdown for EPEL8. Meanwhile I've built marked for EPEL8, and adding marked-man could meet your need (I'll work on a package).
Well, markdown is orphaned. I took markdown, but should have checked upstream first. Upstream has issued a notice that it is unmaintained. Marked-man does not work with the current marked. I am in a fix, because I need a markdown -> groff/nroff translator for man pages. Let me know if you see something promising.
The marked-man-0.7.0 package crashes with marked-1.1.0. I filed a bug upstream, and they have responded. Hopefully, marked-man will be a viable replacement for nodejs-ronn.
This package has changed maintainer in the Fedora. Reassigning to the new maintainer of this component.