README.md in foyer-0.2.1 vs README.md in foyer-0.2.2

@@ -12,11 +12,12 @@
 Setup as normal the `omniauth` gem. Remember to include in `routes.rb` the
 implementating controller action that will call the `sign_in` method:
 
 ```ruby
 Rails.application.routes.draw do
-  get '/auth/:provider/callback', to: 'omniauth_callbacks#callback'
+  match '/auth/:provider/callback', to: 'omniauth_callbacks#callback', via: [:get, :post]
+  match '/auth/failure', to: 'omniauth_callbacks#failure', via: :get
 end
 ```
 
 You may extend the provided `Foyer::OmniauthCallbacksController`, as described
 later in this document, to facilitate the implementation.
@@ -25,10 +26,13 @@
 
 ```ruby
 class ApplicationController < ActionController::Base
   include Foyer::Controller::Helpers
 
+  # Require authentication for all routes.
+  before_action authenticate_user!
+
   set_user_finder do |user_id|
     # Code for retrieving a user from your database here
     # e.g.:
     #
     #  User.find_by_id(user_id)
@@ -115,9 +119,13 @@
 You can inherit from it in your application.
 
 Example:
 ```ruby
 class OmniauthCallbacksController < Foyer::OmniauthCallbacksController
+  def failure
+    redirect_to root_path, notice: 'Authentication failed!'
+  end
+
   def callback
     user = User.find_or_initialize_by(uid: auth_hash.uid.to_s) do |u|
       u.email = auth_hash.info.email
     end