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* Update README.md

* Update README_zh.md

README.md

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+# 🎚️ Upgrade
+[HuixiangDou2](https://github.com/tpoisonooo/HuixiangDou2) is an implementation of KG-LLM Retrieval. If you prioritize improving accuracy and don't mind the cost, try new version.
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 English | [简体中文](README_zh.md)
 
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-HuixiangDou is a **professional knowledge assistant** based on LLM.
+HuixiangDou1 is a **professional knowledge assistant** based on LLM.
 
 Advantages:
 
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 The Web version's API for Android also supports other devices. See [Python sample code](./tests/test_openxlab_android_api.py).
 
-- \[2024/12\] **HuixiangDou2** is coming soon
 - \[2024/09\] [Inverted indexer](https://github.com/InternLM/HuixiangDou/pull/387) makes LLM prefer knowledge base🎯
 - \[2024/09\] [Code retrieval](./huixiangdou/service/parallel_pipeline.py)
 - \[2024/08\] [chat_with_readthedocs](https://huixiangdou.readthedocs.io/en/latest/), see [how to integrate](./docs/zh/doc_add_readthedocs.md) 👍

README_zh.md

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+# 🎚️ 版本升级
+[HuixiangDou2](https://github.com/tpoisonooo/HuixiangDou2) 是一套基于图谱的检索方案，如果你关注精度提升、不在意建立知识库的成本，试试新版。
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 [English](README.md) | 简体中文
 
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