update README.md.

Signed-off-by: 延皓 <harvey_husky@foxmail.com>

README.md

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 为FZ服务器写的Minecraft生存辅助数据包
 
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 [![数据包版本](https://img.shields.io/badge/正式版-3.1.12-blue.svg)](https://gitee.com/harvey-husky/FZ-sDatapack/releases) [![MC版本](https://img.shields.io/badge/Minecraft-1.20+-blue.svg)](https://minecraft.net/)
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-[![数据包版本](https://img.shields.io/badge/正式版-3.1.11-blue.svg)](https://gitee.com/harvey-husky/FZ-sDatapack/releases) [![MC版本](https://img.shields.io/badge/Minecraft-1.20|1.21+-blue.svg)](https://minecraft.net/)
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 > 其他版本见[发行页面](https://gitee.com/harvey-husky/FZ-sDatapack/releases)