Added some usage details

Author: jhubert

README

@@ -9,4 +9,15 @@ I have also built in support for action caching so that you can keep your applic
 
 The code quality isn't as high as I would like and I have taken some shortcuts. I would love any help or input. :)
 
-A new test is a made up of a locale.yml file and or a collection of new views. The local file can override any translations that are in use and the views are direct replacements for views in the core app (BASELINE).
+A new test is a made up of a locale.yml file and or a collection of new views. The local file can override any translations that are in use and the views are direct replacements for views in the core app (BASELINE).
+
+Usage
+==========
+
+rails plugin install git://github.com/jhubert/rails-split-tester.git
+
+A file named split_tests.yml will be created in your config folder. This is where you will define the tests you want to run and what percentage of the traffic they should receive.
+
+A folder named "split" will be created in your test folder. This is where the actual configuration of the split tests will go.
+
+Please see my demo app for an example: https://github.com/jhubert/split-tested-app-demo