Update README.md

Author: sapiens2000

README.md

@@ -1,13 +1,16 @@
+# LOG4U
+
+---
+
+[![GitHub commit activity](https://img.shields.io/github/commit-activity/w/prgrms-web-devcourse-final-project%2FWEB3_4_Log4U_BE)](https://github.com/prgrms-web-devcourse-final-project/WEB3_4_Log4U_BE/pulse)
+
 ## 서버 주소
 
+---
 [API 서버](https://log4u.site)
 
 [프론트 서버](https://fe-log4u.vercel.app)
 
-## 구조도
-
-![구조도.webp](../../../Downloads/%EA%B5%AC%EC%A1%B0%EB%8F%84.webp)
-
 ## 개발 환경 설정
 
 ---
@@ -22,3 +25,7 @@ docker-compose up -d
 docker-compose up -d postgres
 
 ```
+
+## 구조도
+
+![Image](https://github.com/user-attachments/assets/4d95478a-0876-46b3-9383-921e41bb9b4b)