rubygems/guides — pull request #66 by bf4 (2013-11-12 18:51:55+00:00)
Title: Add link guide of how to cryptographically sign your RubyGem

Per discussion on [rubygems-developers](https://groups.google.com/d/msg/rubygems-developers/5ISp7D2tCu4/jNqk2KQzSsEJ)