README.md in nazrin-0.1.1 vs README.md in nazrin-0.2.0

@@ -29,11 +29,11 @@
 ### in Ruby on Rails
 
 ```ruby
 $ bundle exec rails g nazrin:config
 
-Nazrin.config do |config|
+Nazrin.configure do |config|
   config.debug_mode = false
   config.search_endpoint = ''
   config.document_endpoint = ''
   config.region = ''
   config.access_key_id = ''
@@ -42,24 +42,25 @@
   config.pagination = 'kaminari'
 end
 ```
 
 ```ruby
-class Post
+class Post < ActiveRecord::Base
   include Nazrin::ActiveRecord::Searchable
 
   searchable do
     fields [:content]
     field(:created_at) { created_at.utc.iso8601 }
   end
 
-  after_create :update_in_index
+  after_create :add_to_index
+  after_update :update_in_index
   after_destroy :delete_from_index
 end
 ```
 
 ```ruby
-Post.search.size(1).start(0).query("(and 'content')").query_parser('structured').execute
+Post.search(where: :foo, includes: :bar).size(1).start(0).query("(and 'content')").query_parser('structured').execute
 => [#<Post id: 1, content: "content">]
 ```
 
 ## Development