📄 Update README.md

Kim-Yukyung · web-flow · commit e1332ad34463 · 2025-06-16T23:14:56.000+09:00
diff --git a/README.md b/README.md
@@ -52,7 +52,7 @@ java -jar build/libs/sayup-backend.jar
 
 **3. Docker Compose로 실행**
 ```
-docker-compose up --build
+docker compose --env-file .env.prod up
 ```
 <br>
 
