/usr/share/ is in ruby-rails-assets-markdown-it-sub 1.0.0-2.
This file is owned by root:root, with mode 0o755.
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/usr/share/ruby-rails-assets-markdown-it-sub/app/assets/
/usr/share/ruby-rails-assets-markdown-it-sub/
/usr/share/ruby-rails-assets-markdown-it-sub/app/
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/usr/share/doc/
/usr/share/doc/ruby-rails-assets-markdown-it-sub/
/usr/share/doc/ruby-rails-assets-markdown-it-sub/copyright
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/rails-assets-markdown-it-sub-1.0.0.gemspec
/usr/share/ruby-rails-assets-markdown-it-sub/app/assets/javascripts/markdown-it-sub/markdown-it-sub.js
/usr/share/doc/ruby-rails-assets-markdown-it-sub/changelog.Debian.gz