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

mute-idiom/README.md

@@ -14,7 +14,7 @@ tags:
 Provide a template to suppress any exceptions that either are declared but cannot occur or should only be logged;
 while executing some business logic. The template removes the need to write repeated `try-catch` blocks.
 
-
+## Class diagram
 ![alt text](./etc/mute-idiom.png "Mute Idiom")
 
 ## Applicability