README.md in attachy-0.2.0 vs README.md in attachy-0.3.0

@@ -11,10 +11,16 @@
 Attachy will generate a `has_one` or `has_many` files (photos) to your model
 with no need to change your model schema!
 
 ## Install
 
-Extracts the necessary files including a migrate that create a table used
+Add the following code on your `Gemfile` and run `bundle install`:
+
+```ruby
+gem 'attachy'
+```
+
+So, extracts the necessary files including a migrate that create a table used
 to keep your file metadata. You can choose a [Default Image](#default-image) via params 'version', `public_id` and 'format'.
 
 ```bash
 rails g attachy:install
 ```