Better ordering

railties/lib/rails/generators/rails/app/templates/Gemfile

@@ -9,14 +9,14 @@ source 'https://rubygems.org'
 <%= assets_gemfile_entry %>
 <%= javascript_gemfile_entry -%>
 
+# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
+gem 'jbuilder', '~> 1.0.1'
+
 group :doc do
   # bundle exec rake doc:rails generates the API under doc/api.
   gem 'sdoc', require: false
 end
 
-# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 1.0.1'
-
 # Use ActiveModel has_secure_password
 # gem 'bcrypt-ruby', '~> 3.0.0'