Update README.md

Author: codeliner

README.md

@@ -2,3 +2,8 @@ php-ddd-cargo-sample
 ====================
 
 PHP Version of the cargo sample used in Eric Evans DDD book
+
+This project is in a work in progress state. Your welcome to fork the repo and help to finish the cargo sample app for php.
+The system is based on ZF2 to get a powerful application layer out of the box and uses Doctrine2 to persist it's aggregates. 
+This would be a common combination in a large PHP project but it is not required. We want to focus on the implementation
+of the domain model. The infrastructure and application layer can be replaced with any other PHP based components.