diff --git a/README.md b/README.md
index 2d2d437..1e261fb 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,19 @@ graph TD;
     C-->D;
 	F-->C
 ```
+
+# sequenceDiagram
+```mermaid
+sequenceDiagram
+    participant Alice
+    participant Bob
+    Alice->>John: Hello John, how are you?
+    loop HealthCheck
+        John->>John: Fight against hypochondria
+    end
+    Note right of John: Rational thoughts <br/>prevail!
+    John-->>Alice: Great!
+    John->>Bob: How about you?
+    Bob-->>John: Jolly good!
+
+```
\ No newline at end of file