fix code highlighting for the snippet on overriding to_param
Merge pull request #79 from rousisk/master

Fix code highlighting for the snippet on overriding to_param
[Fix #72] Correct premailer's URL
Spaces in hash between content and curly brackets.
Merge pull request #83 from gabrielfagundez/master

Spaces in hash between content and curly brackets.
Merge branch 'master' of github.com:bbatsov/rails-style-guide