badge fix

Author: attilameszaros-form3

README.md

@@ -1,6 +1,6 @@
 # ![java-operator-sdk](docs/assets/images/logo.png) 
 ![Java CI with Maven](https://github.com/java-operator-sdk/java-operator-sdk/workflows/Java%20CI%20with%20Maven/badge.svg)
-[![Discord](https://img.shields.io/discord/723455000604573736.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)][discord]
+![Discord](https://img.shields.io/discord/723455000604573736.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)
 
 Build Kubernetes Operators in Java without hassle. Inspired by [operator-sdk](https://github.com/operator-framework/operator-sdk).