README.md in va-0.3.0 vs README.md in va-0.4.0

@@ -57,9 +57,34 @@
 ```ruby
   s = Signup.new(email: "[e-mail]", phone_number: "987654321")
   # => #<Signup:0x000000015f8dd0 @attributes={:email=>"[e-mail]"}>
 ```
 
+### Default Values
+
+You can assign a default value for an attribute, in which case, if no value is provided, it will get assigned either way:
+
+```ruby
+  class UserValidator < Va::Model
+    attribute :name, default: "N/A"
+    attribute :admin,  default: false
+    attribute :editor, default: true
+    attribute :remember_me, default: true
+    attribute :age
+    attribute :height
+  end
+  
+  u = UserValidator.new(age: 30, remember_me: false)
+  u.attributes
+  # => {:name=>"N/A",
+  #     :admin=>false,
+  #     :editor=>true,
+  #     :remember_me=>false,
+  #     :age=>30}
+```
+
+Note that `age` and `remember_me` were set explicitly, `name`, `admin` and `editor` where set by default, and `height wasn't set at all.
+
 ### Custom Validations
 
 
 Up until here, we haven't talked about validations.