Switch Discord badge

The dynamic one previously used was subject to usage limits.

README.md

@@ -9,7 +9,7 @@ No matter how large or small your project is, Winter provides a rich development
 [![Version](https://img.shields.io/github/v/release/wintercms/winter?sort=semver&style=flat-square)](https://github.com/wintercms/winter/releases)
 [![Tests](https://img.shields.io/github/actions/workflow/status/wintercms/winter/tests.yml?branch=develop&label=tests&style=flat-square)](https://github.com/wintercms/winter/actions)
 [![License](https://img.shields.io/github/license/wintercms/winter?label=open%20source&style=flat-square)](https://packagist.org/packages/wintercms/winter)
-[![Discord](https://img.shields.io/discord/816852513684193281?label=discord&style=flat-square)](https://discord.gg/D5MFSPH6Ux)
+[![Discord](https://img.shields.io/badge/discord-join-purple?style=flat-square&logo=discord&logoColor=white)](https://discord.gg/D5MFSPH6Ux)
 
 [![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/wintercms/winter)