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

event-asynchronous/README.md

@@ -19,6 +19,7 @@ of the complex issues inherent in multithreaded design. Using a class that suppo
 3. Wait for resources to become available without stopping ("hanging") your application.
 4. Communicate with pending asynchronous operations using the familiar events-and-delegates model.
 
+## Class diagram
 ![alt text](./etc/event-asynchronous.png "Event-based Asynchronous")
 
 ## Applicability