Merge pull request #1650 from cambeaudoin/patch-1

Update free-programming-books.md
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victor felder 2015-10-22 20:51:00 +02:00
commit 10cf23dad3

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@ -1737,7 +1737,7 @@ See also [TeX](#tex)
* [Ruby on Rails 3.2 - Step by Step](http://www.xyzpub.com/en/ruby-on-rails/3.2/)
* [Ruby on Rails 4.0 Guide](http://www.xyzpub.com/en/ruby-on-rails/4.0/)
* [Ruby on Rails Guides](http://guides.rubyonrails.org)
* [Ruby on Rails Tutorial: Learn Rails By Example](http://ruby.railstutorial.org/ruby-on-rails-tutorial-book)
* [Ruby on Rails Tutorial: Learn Rails By Example](https://www.railstutorial.org/book/)
* [Upgrading to Rails 4](https://github.com/alindeman/upgradingtorails4)