README.md in rails-i18n-0.5.2 vs README.md in rails-i18n-0.6.0.beta1

@@ -15,9 +15,22 @@
 
     gem install rails-i18n
 
 Note that your rails version must be 3.0 or higher if you want to install `rails-i18n` as a gem. For rails 2.x, install it manually as described below.
 
+## Configuration
+
+By default `rails-i18n` loads all locale files, pluralization and
+transliteration rules available in the gem. This behaviour can be changed, if you
+specify in `config/environments/*` the locales which have to be loaded via
+`I18n.available_locales` option:
+
+    config.i18n.available_locales = ['es-CO', :de]
+
+or
+
+    config.i18n.available_locales = :nl
+
 ## Manual installation
 
 Download the locale files that are found in the directory [rails/locale](http://github.com/svenfuchs/rails-i18n/tree/master/rails/locale/) and put them into the `config/locales` directory of your Rails application.
 
 If any translation doesn't suit well to the requirements of your application, edit them or add your own locale files.