ronn --roff --manual="Gist manual" README.md.ron
mkdir -p build
     roff: ./README.md.1                              
warn: unrecognized block tag: ["h4"]
warn: unrecognized inline tag: ["p"]
rake aborted!
Errno::ENOENT: No such file or directory @ rb_file_s_rename - (README.1, build/gist.1)
/build/gist/src/gist-6.0.0/Rakefile:17:in `block in <top (required)>'
Tasks: TOP => build => man
(See full trace by running task with --trace)
rm README.md.ron
mv README.1 build/gist.1
==> ERROR: A failure occurred in build().
    Aborting...