docs: 更新README文档

Author: insistence

README.md

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 <p align="center">
 	<img alt="logo" src="https://oscimg.oschina.net/oscnet/up-d3d0a9303e11d522a06cd263f3079027715.png">
 </p>
-<h1 align="center" style="margin: 30px 0 30px; font-weight: bold;">Dash-FastAPI-Admin v1.2.0</h1>
+<h1 align="center" style="margin: 30px 0 30px; font-weight: bold;">Dash-FastAPI-Admin v1.2.1</h1>
 <h4 align="center">基于Dash+FastAPI前后端分离的纯Python快速开发框架</h4>
 <p align="center">
 	<a href="https://gitee.com/insistence2022/dash-fastapi-admin/stargazers"><img src="https://gitee.com/insistence2022/dash-fastapi-admin/badge/star.svg?theme=dark"></a>
     <a href="https://github.com/insistence/Dash-FastAPI-Admin"><img src="https://img.shields.io/github/stars/insistence/Dash-FastAPI-Admin?style=social"></a>
-	<a href="https://gitee.com/insistence2022/dash-fastapi-admin"><img src="https://img.shields.io/badge/DashFastAPIAdmin-v1.2.0-brightgreen.svg"></a>
+	<a href="https://gitee.com/insistence2022/dash-fastapi-admin"><img src="https://img.shields.io/badge/DashFastAPIAdmin-v1.2.1-brightgreen.svg"></a>
 	<a href="https://gitee.com/insistence2022/dash-fastapi-admin/blob/master/LICENSE"><img src="https://img.shields.io/github/license/mashape/apistatus.svg"></a>
     <img src="https://img.shields.io/badge/python-3.8 | 3.9-blue">
     <img src="https://img.shields.io/badge/MySQL-≥5.7-blue">
 </p>
 
 
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 ## 平台简介
 
 Dash-FastAPI-Admin是一套全部开源的快速开发平台，毫无保留给个人及企业免费使用。