Small improvements

I run rubocop and he shows some formatting issues. I changed in the files helper.

And Rails renders automatically when you define empty method actions on controllers.

My first and a small contribution.
@lorenzotello I used the vim-ruby to indent this lines, and I always use this indentation for many, for the example exactly like these one. Was exactly is wrong about it? Before that rubocop are reporting this lines, after this commit, the rubocop doesn't report anything. Wdyt?