README.md in detour-0.0.7 vs README.md in detour-0.0.9

@@ -1,8 +1,9 @@
 # Detour
 
-Rollouts for `ActiveRecord` models. It is a spiritual fork of [ArRollout](https://github.com/markpundsack/ar_rollout).
+Rollouts for `ActiveRecord` models. It is a spiritual fork of
+[ArRollout](https://github.com/markpundsack/ar_rollout).
 
 | development status | master status | Code Climate |
 | ------------------ | ------------- | ------------ |
 | [![development status][dev_image]][branch_status] | [![master status][master_image]][branch_status] | [![Code Climate][code_climate_image]][code_climate]
 
@@ -15,10 +16,11 @@
 ## Contents
 
 - [Installation](#installation)
 - [Usage](#usage)
   - [Configuration](#configuration)
+  - [Restricting the admin interface](#restricting-the-admin-interface)
   - [Marking a model as flaggable](#marking-a-model-as-flaggable)
   - [Determining if a record is flagged into a feature](#determining-if-a-record-is-flagged-into-a-feature)
   - [Defining programmatic groups](#defining-programmatic-groups)
 - [Contributing](#contributing)
 
@@ -42,11 +44,12 @@
 
 ## Usage
 
 `Detour` works by determining whether or not a specific record
 should have features accessible to it based on individual flags, flags for a
-percentage of records, or flags for a programmable group of records.
+percentage of records, flags for a database-backed group of records, or flags
+for a code-defined group of records.
 
 ### Configuration
 
 Edit `config/initializers/detour.rb`:
 
@@ -59,24 +62,50 @@
   # Detour needs to know what directories to search
   # through in order to find places where you're
   # checking for flags in your code. Provide it an
   # array of glob strings:
   config.feature_search_dirs = %w[app/**/*.{rb,erb}]
-
-  # Provide a default class to manage rollouts for, if
-  # desired. This means you can omit the class name from
-  # rake tasks:
-  config.default_flaggable_class_name = "User"
 end
 ```
 
 Mount the app in `config/routes.rb`:
 
 ```ruby
 Rails.application.routes.draw do
   mount Detour::Engine => "/detour"
 end
 ```
+
+### Restricting the admin interface
+
+If you'd like your Detour admin interface only accessible to admins, for example,
+you can add a `before_filter` to `Detour::ApplicationController` in the Detour
+initializer:
+
+```ruby
+# config/initializers/detour.rb
+
+Detour::ApplicationController.class_eval do
+  include CurrentUser
+
+  before_filter :admin_required!
+
+  private
+
+  def admin_required!
+    if current_user && current_user.admin?
+      true
+    else
+      # redirect somewhere for non-admins
+    end
+  end
+end
+```
+
+Since `Detour::ApplicationController` isn't a subclass of my `ApplicationController`,
+I've included a `CurrentUser` module that I built in this app that adds a
+`current_user` method to any controller that it's included in. Now, only admins
+will have access to the Detour admin interface.
 
 ### Marking a model as flaggable
 
 In addition to listing classes that are flaggable in your initializer, add
 `acts_as_flaggable` to the class definitions themselves: