README.md in rakismet-1.2.1 vs README.md in rakismet-1.3.0

@@ -18,17 +18,24 @@
 Once you've installed the Rakismet gem and added it to your application's Gemfile,
 you'll need an API key. Head on over to http://akismet.com/signup/ and sign up
 for a new username.
 
 Configure the Rakismet key and the URL of your application by setting the following
-in an initializer or application.rb:
+in application.rb:
 
 ```ruby
 config.rakismet.key = 'your wordpress key'
 config.rakismet.url = 'http://yourdomain.com/'
 ```
-    
+
+or an initializer, for example `config/initializers/rakismet.rb`:
+
+```ruby
+YourApp::Application.config.rakismet.key = 'your wordpress key'
+YourApp::Application.config.rakismet.url = 'http://yourdomain.com/'
+```
+
 If you wish to use another Akismet-compatible API provider such as TypePad's
 antispam service, you'll also need to set `config.rakismet.host` to your service
 provider's endpoint.
 
 If you want to use a proxy to access akismet (i.e. your application is behind a
@@ -134,9 +141,36 @@
 your app initialization:
 
 ```ruby
 config.rakismet.use_middleware = false
 ```
+
+Testing
+-------
+
+Rakismet can be configued to tell Akismet that it should operate in test mode -
+so Akismet will not change its behavior based on any test API calls, meaning
+they will have no training effect. That means your tests can be somewhat
+repeatable in the sense that one test won't influence subsequent calls.
+
+You can configure Rakismet for test mode via application.rb:
+
+```ruby
+config.rakismet.test = false # <- default
+config.rakismet.test = true
+```
+
+Or via an initializer:
+
+```ruby
+YourApp::Application.config.rakismet.test = false # <- default
+YourApp::Application.config.rakismet.test = true
+```
+
+**NOTE**: When running in Rails, Rakismet will run in test mode when your Rails
+environment is `test` or `development`, unless explictly configured otherwise.
+Outside of Rails Rakismet defaults to test mode turned **off**.
+
 
 Verifying Responses
 -------------------
 
 If you want to see what's happening behind the scenes, after you call one of