Update Rails Style Guide log (#8573)

books/free-programming-books-langs.md

@@ -2169,7 +2169,6 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 
 #### Ruby on Rails
 
-* [A community-driven Rails style guide](https://github.com/bbatsov/rails-style-guide)
 * [Api on Rails 6](https://github.com/madeindjs/api_on_rails) - Alexandre Rousseau
 * [Building REST APIs with Rails](https://www.softcover.io/read/06acc071/api_on_rails) - Abraham Kuri Vargas
 * [Essential Ruby on Rails](https://www.programming-books.io/essential/rubyonrails/) - Krzysztof Kowalczyk, StackOverflow Contributors
@@ -2177,6 +2176,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Learn Ruby on Rails: Book One](https://learn-rails.com/content/learnrails1) - Daniel Kehoe
 * [Objects on Rails](https://web.archive.org/web/20190319201525/http://objectsonrails.com/) - Avdi Grimm
 * [Rails Girls Guides](http://guides.railsgirls.com)
+* [Rails Style Guide](https://rails.rubystyle.guide) - Bozhidar Batsov
 * [Ruby Notes for Professionals](https://books.goalkicker.com/RubyBook/) - Compiled from StackOverflow Documentation (PDF)
 * [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/)