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 Evaluation tools for Retrieval-augmented Generation (RAG) methods.
 
+[![python](https://img.shields.io/badge/Python-3.8.18-3776AB.svg?style=flat&logo=python&logoColor=white)](https://www.python.org)
 ![workflow status](https://github.com/gomate-community/rageval/actions/workflows/makefile.yml/badge.svg)
 [![codecov](https://codecov.io/gh/gomate-community/rageval/graph/badge.svg?token=AH4DNR46HL)](https://codecov.io/gh/gomate-community/rageval)
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+[![PEP8](https://img.shields.io/badge/code%20style-pep8-orange.svg)](https://www.python.org/dev/peps/pep-0008/)
 
 Rageval is a tool that helps you evaluate RAG system. The evaluation consists of six sub-tasks, including query rewriting, document ranking, information compression, evidence verify, answer generating, and result validating.