Update Discord widget.

Co-authored-by: 沈唁 <52o@qq52o.cn>

README.md

@@ -17,8 +17,7 @@
   <a><img src="https://github.com/docsifyjs/docsify/workflows/Testing%20the%20e2e%20test%20suites/badge.svg?branch=develop&amp;event=push" alt="Testing the e2e test suites"></a>
   <a href="https://www.npmjs.com/package/docsify"><img alt="npm" src="https://img.shields.io/npm/v/docsify.svg?style=flat-square"></a>
   <a href="https://github.com/QingWei-Li/donate"><img alt="donate" src="https://img.shields.io/badge/%24-donate-ff69b4.svg?style=flat-square"></a>
-  <a href="https://discord.gg/3NwKFyR">
-  <img alt="Join Discord community and chat about Docsify" src="https://img.shields.io/discord/713647066802421792.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2&cacheSeconds=60"></a>
+  <a href="https://discord.gg/3NwKFyR"><img alt="Join Discord community and chat about Docsify" src="https://img.shields.io/discord/713647066802421792.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2&cacheSeconds=60"></a>
   <a href="https://gitpod.io/#https://github.com/docsifyjs/docsify"><img src="https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod" alt="Gitpod Ready-to-Code"></a>
 </p>