diff --git a/README.md b/README.md
index 977149a..b86b937 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,18 @@
 # connect4
 
 ```mermaid
-
 classDiagram
-Player : int id
-Player : string nom
+Class01 <|-- AveryLongClass : Cool
+Class03 *-- Class04
+Class05 o-- Class06
+Class07 .. Class08
+Class09 --> C2 : Where am i?
+Class09 --* C3
+Class09 --|> Class07
+Class07 : equals()
+Class07 : Object[] elementData
+Class01 : size()
+Class01 : int chimp
+Class01 : int gorilla
+Class08 <--> C2: Cool label
 ```
\ No newline at end of file