README.md in strong_actions-0.0.1 vs README.md in strong_actions-0.0.2

@@ -16,10 +16,26 @@
 
     $ gem install strong_actions
 
 ## Usage
 
-TODO: Write usage instructions here
+Suppose method "current_user" is available for controllers and views,
+
+and user has an attribute called admin and only admin can modify resource "users",
+
+then prepare config/acl.yml
+
+    current_user:
+        users:
+            new: admin?
+            create: admin?
+            edit: admin?
+            update: admin?
+            destroy: admin?
+
+In views, use helper_method "available?"
+
+    <%= link_to 'Add User' new_user_path if available?('users', 'new') %>
 
 ## Contributing
 
 1. Fork it ( https://github.com/[my-github-username]/strong_actions/fork )
 2. Create your feature branch (`git checkout -b my-new-feature`)