README.md in metka-1.0.0 vs README.md in metka-1.0.1

@@ -1,5 +1,6 @@
+[![Gem Version](https://badge.fury.io/rb/metka.svg)](https://badge.fury.io/rb/metka)
 [![Build Status](https://travis-ci.org/jetrockets/metka.svg?branch=master)](https://travis-ci.org/jetrockets/metka)
 [![Open Source Helpers](https://www.codetriage.com/jetrockets/metka/badges/users.svg)](https://www.codetriage.com/jetrockets/metka)
 
 # Metka
 
@@ -21,19 +22,36 @@
 
     $ gem install metka
 
 ## Tag objects
 
+```bash
+rails g migration CreateSongs
+```
+
 ```ruby
+class CreateSongs < ActiveRecord::Migration[5.0]
+  def change
+    create_table :songs do |t|
+      t.string  :title
+      t.string  :tags, array: true
+      t.string  :genres, array: true
+      t.timestamps
+    end
+  end
+end
+```
+
+```ruby
 class Song < ActiveRecord::Base
   include Metka::Model(column: 'tags')
   include Metka::Model(column: 'genres')
 end
 
-@Song = Song.new(title: 'Migrate tags in Rails to SonggreSQL')
[e-mail]_list = 'top, chill'
[e-mail]_list = 'rock, jazz, pop'
[e-mail]
+@song = Song.new(title: 'Migrate tags in Rails to SonggreSQL')
[e-mail]_list = 'top, chill'
[e-mail]_list = 'rock, jazz, pop'
[e-mail]
 ```
 
 ## Find tagged objects
 
 ### .with_all_#{column_name}