fix: README typo

README.md

@@ -104,7 +104,7 @@ docker-compose stop
 - Create Event
 <img src="./assets/readme/create_event.png" alt="Create Event"><br>
 - Update Event
-<img src="./assets/readme/update_event.png" alt="Update Event"><br>
+<img src="./assets/readme/edit_event.png" alt="Update Event"><br>
 - Delete Event
 <img src="./assets/readme/delete_event.png" alt="Delete Event"><br>
 - Event Details / Purchase Ticket