cmark-gfm 0.29.0.gfm.6-6 (s390x binary) in ubuntu lunar

 cmark-gfm is the GitHub flavor of the cmark C reference
 implementation of CommonMark, a rationalized version of Markdown
 syntax with a spec. This package provides a command-line program
 (cmark-gfm) for parsing and rendering CommonMark documents.
 .
 This GitHub flavored version has extensions for org-mode style
 tables, auto-linking, and more.