신규인원(홍지영) 추가

Author: jhongy1994

README.md

@@ -269,6 +269,7 @@ Lang2SQL은 LangGraph를 사용한 다단계 접근 방식을 따릅니다:
 | **ML Engineer** | 이호민 | ![Python](https://img.shields.io/badge/Python-Expert-3776AB) | Multi-Agent Systems |
 | **AI Engineer** | 최세영 | ![Python](https://img.shields.io/badge/Python-Expert-3776AB) | LLM, RAG, Multi-Agent |
 | **Full-Stack Developer** | 황윤진 | ![NextJs](https://img.shields.io/badge/NextJs-Expert-3776AB) ![React](https://img.shields.io/badge/React-Expert-3776AB) | LLM Orchestration |
+| **Data Engineer** | 홍지영 | ![Python](https://img.shields.io/badge/Python-Expert-3776AB) | LLM, Data Engineering |
 
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