docs(readme): replace Discord invite link

https://discord.gg/njExwXdrRJ

Author: remarkablemark

README.md

@@ -7,7 +7,7 @@
 [![Coverage Status](https://coveralls.io/repos/github/remarkablemark/html-react-parser/badge.svg?branch=master)](https://coveralls.io/github/remarkablemark/html-react-parser?branch=master)
 [![Dependency status](https://david-dm.org/remarkablemark/html-react-parser.svg)](https://david-dm.org/remarkablemark/html-react-parser)
 [![NPM downloads](https://img.shields.io/npm/dm/html-react-parser.svg?style=flat-square)](https://www.npmjs.com/package/html-react-parser)
-[![Discord](https://img.shields.io/discord/795406210274689025.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/GpfKHwcYth)
+[![Discord](https://img.shields.io/discord/422421589582282752.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/njExwXdrRJ)
 
 HTML to React parser that works on both the server (Node.js) and the client (browser):