update the 'Note' of name conflict note for Product

SDT/schema4.0/docs/SDT_Components.md

@@ -184,9 +184,9 @@ The element has the following attributes:
 	- **domain** : Identifier / Reference of the [Domain](#Domain) of the extended *Product*. Optional if in the same domain.
 	- **class** : *id* of the *Product* in the [Domain](#Domain) that is extended. Required for this element.
 
-**Note**: New extended *Properties* and *ModuleClasses* **should** have different names from those in the inherited *DeviceClass*. In case the names conflict, the newly defined *Properties* and *ModuleClasses* shall override the inherited ones.
+**Note**: New extended *Properties* and *ModuleClasses* **shall** have different names from those in the implemented *DeviceClass* if they're defined in the same *Domain*. 
 
-**Editor's Note**: the description of the optionality of the datapoints, properties, actions, events in the inherited ModuleClass is FFS.
+**Editor's Note**: the description of the optionality of the datapoints, properties, actions, events in the implemented ModuleClass is FFS.
 
 #### XML Example
 ```