Update README.md

Author: mr-fall

README.md

@@ -1,7 +1,7 @@
 # 🗂️ Zone01 Piscine Backup  
 
 <p align="center">
-  <img src="./assets/piscine-graph.png" alt="Piscine Graph" width="1000"/>
+  <img src="./assets/by-vegas.gif" alt="GIF" width="1000"/>
 </p>
 
 📌 This repository is a **backup and documentation** of my journey through the **Zone01 Piscine Go – Oujda #355**.