#1113 Link uml-reverse-mapper created class diagrams to readme, where needed

factory-method/README.md

@@ -62,6 +62,9 @@ blacksmith.manufactureWeapon(WeaponType.AXE);
 // Elvish weapons are created
 ```
 
+## Class diagram
+![alt text](./etc/factory-method.urm.png "Factory Method pattern class diagram")
+
 ## Applicability
 Use the Factory Method pattern when