thoughtbot/guides — pull request #40 by croaky (2013-01-07 00:22:15+00:00)
Title: Add project management link to commit message

* Create a connection between project management system and git history.
* Make it easy for future developers to understand the reasons why code
exists without having to disturb the original author or relying on the
original author being available/on the project/with the company at a
later date.