README.rdoc in property_sets-0.4.0 vs README.rdoc in property_sets-0.4.1

@@ -30,9 +30,26 @@
   account.settings.featured?
 
   # Short hand for setting one or more values
   account.settings.set(:version => "v1.2", :activated => true)
 
+=== Validations
+
+Property sets supports standard AR validations, although in a somewhat manual fashion.
+
+  class Account < ActiveRecord::Base
+    property_set :settings do
+      property :version, :default => "v1.0"
+      property :featured, :protected => true
+
+      validates_format_of :value, :with => /v\d+\.\d+/, :message => "of version is invalid",
+                          :if => Proc.new { |r| r.name.to_sym == :version }
+    end
+  end
+
+On +account.save+ this will result in an error record being added. You can also inspect the
+setting record using +account.settings.version_record+
+
 === Bulk operations
 
 Stored properties can also be updated with the update_attributes and update_attributes! methods by
 enabling nested attributes. Like this (from the test cases):
 
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