README.md in yaml_properties-0.0.7 vs README.md in yaml_properties-0.0.8

@@ -31,9 +31,29 @@
   def self.yaml_file
     ENV['SINATRA_ENV'] == 'development' ? 'config/properties.yml' : 'config/properties_production.yml'
   end
 end
 ```
+
+##Temporarily override values in e.g. cucumber
+```ruby
+
+#lib/shutl.rb
+module Shutl
+  extend YamlProperties
+end
+
+#features/support/env.rb
+After do |scenario|
+  YamlProperties.reset!
+end
+
+#features/step_definitions/egg_steps.rb
+Given /\AThere are \d+ eggs in a dozen\z/ |dozen|
+  YamlProperties.override_attribute :egg, dozen
+end
+```
+
 #Yadayada
 
 ```ruby
 gem 'yaml_config'
 ```