diff --git a/README.md b/README.md
index 5b93272..f90da51 100644
--- a/README.md
+++ b/README.md
@@ -101,6 +101,7 @@ skinparam classBorderColor #800000
 skinparam classArrowColor #800000
 skinparam classFontColor #black
 skinparam classFontName Tahoma
+class Commentaire #line:green;back:lightblue
 
 @enduml
 ```