matthias-guenther/padrino-book — pull request #27 by scottharvey (2013-02-13 17:52:40+00:00)
Title: Update 01-introduction.md

Fixed typo and included a description of Gemfile.lock.

Although Gemfile.lock isn't in the file system of a clean install of Padrino it will be there if someone is following along with the tutorial so I think the description should be there.