README.md in rails-erd-1.3.0 vs README.md in rails-erd-1.3.1

@@ -3,11 +3,11 @@
 
 [Rails ERD](http://voormedia.github.io/rails-erd/) is a Rails plugin that allows you to easily generate a diagram based on your Active Record models. The diagram gives an overview of how your models are related. Having a diagram that describes your models is perfect documentation for your application.
 
 The second goal of Rails ERD is to provide you with a tool to inspect your application's domain model. If you don't like the default output, it is very easy to use the API to build your own diagrams.
 
-Rails ERD was created specifically for Rails 3. It uses Active Record's built-in reflection capabilities to figure out how your models are associated.
+Rails ERD was created specifically for Rails and works on versions 3.0-4.2. It uses Active Record's built-in reflection capabilities to figure out how your models are associated.
 
 
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@@ -51,13 +51,15 @@
 inheritance: false
 markup: true
 notation: simple
 orientation: horizontal
 polymorphism: false
+sort: true
 warn: true
 title: sample title
 exclude: null
-only: 
+only: null
+prepend_primary: false
 ```
 
 
 Learn more
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