README.md in myrrha-1.1.0 vs README.md in myrrha-1.2.0

@@ -15,11 +15,11 @@
 ### Bundler & Require 
 
     # Bug fixes (tiny) do not even add new default rules to coerce and 
     # to\_ruby\_literal. Minor version can, which could break your code. 
     # Therefore, please always use:
-    gem "myrrha", "~> 1.0.0"
+    gem "myrrha", "~> 1.1.0"
 
 ## Links
 
 * http://www.rubydoc.info/gems/myrrha/1.1.0/file/README.md (read this file there!)
 * http://github.com/blambeau/myrrha (source code)
@@ -454,8 +454,17 @@
     rules.coerce("12", PosInt)    # => 12
     
     # and correctly fails in each case!
     rules.coerce("-12", Integer)  # => -12
     rules.coerce("-12", PosInt)   # => ArgumentError, "Invalid value -12 for PosInt"
-    
-    
-    
\ No newline at end of file
+
+Note that if you want to provide additional tooling to your factored domain, 
+the following way of creating them also works:
+
+    class PosInt < Integer
+      extend Myrrha::Domain
+      
+      def self.predicate
+        @predicate ||= lambda{|i| i > 0}
+      end
+      
+    end