Merge pull request #40 from mgaut72/master

add git talk
Add Zach Montoya's Ruby on Rails talk to the posts
Merge pull request #42 from zacharymontoya/master

Add Zach Montoya's Ruby on Rails talk to the posts
Add pdf for Zach's Rails talk to the slides/ directory and update the lecture markdown to link the document
Updated the link to Zach's Rails talk to be a relative link
Merge pull request #43 from zacharymontoya/master

Add pdf for Zach's Rails talk to the slides/ directory
Merge branch 'master' of github.com:uofa-acm/uofa-acm.github.io