Update README.md

Author: gksdud1109

README.md

@@ -216,8 +216,9 @@ KAKAO_CLIENT_SECRET=your_kakao_client_secret
 
 ### Observability & Performance
 
-![Grafana](https://img.shields.io/badge/Grafana-F46800?style=for-the-badge&logo=grafana&logoColor=white)
 ![Grafana Alloy](https://img.shields.io/badge/Grafana%20Alloy-FF8C00?style=for-the-badge&logo=grafana&logoColor=white)
+![Loki](https://img.shields.io/badge/Loki-F46800?style=for-the-badge&logo=grafana&logoColor=white)
+![Grafana](https://img.shields.io/badge/Grafana-F46800?style=for-the-badge&logo=grafana&logoColor=white)
 ![Prometheus](https://img.shields.io/badge/Prometheus-E6522C?style=for-the-badge&logo=prometheus&logoColor=white)
 ![k6](https://img.shields.io/badge/k6-7D64FF?style=for-the-badge&logo=k6&logoColor=white)
 ![Doppler](https://img.shields.io/badge/Doppler-000000?style=for-the-badge&logo=doppler&logoColor=white)