fix maven badge

Author: adam-sandor

README.md

@@ -1,5 +1,5 @@
 # ![java-operator-sdk](logo.png) 
-![Java CI with Maven](https://github.com/ContainerSolutions/java-operator-sdk/workflows/Java%20CI%20with%20Maven/badge.svg | width = 300)
+![Java CI with Maven](https://github.com/ContainerSolutions/java-operator-sdk/workflows/Java%20CI%20with%20Maven/badge.svg)
 
 Build Kubernetes Operators in Java without hassle. Inspired by [operator-sdk](https://github.com/operator-framework/operator-sdk).