README.md in devise-token_authenticatable-1.0.0 vs README.md in devise-token_authenticatable-1.0.1

@@ -27,12 +27,22 @@
 `~> 0.1`                        | `~> 3.2.0`
 `~> 0.2`                        | `~> 3.3.0`
 `~> 0.3`                        | `~> 3.4.0`
 `~> 0.4.0`, `< 0.4.9`           | `~> 3.5.0`, `< 3.5.2`
 `~> 0.4.9`                      | `~> 3.5.2`
-`~> 0.5.x`, `<= 1.0.0`          | `>= 4.0.0`, `< 4.4.0`
+`~> 0.5.x`, `<= 1.0.1`          | `>= 4.0.0`, `< 4.5.0`
 
 ## Usage
+Create needed columns with corresponding migration:
+
+```ruby
+  def change
+    add_column :users, :authentication_token, :text
+    add_column :users, :authentication_token_created_at, :datetime
+
+    add_index :users, :authentication_token, unique: true
+  end
+```
 
 Add `:token_authenticatable` to your devise model:
 
 ```ruby
 class User < ActiveRecord::Base