Add Java CI badge to README

Author: darkmusic

Readme.md

@@ -1,6 +1,6 @@
 ### Sticky Image Manager
 
-[![Maven Package](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven-publish.yml/badge.svg)](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven-publish.yml)
+[![Maven Package](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven-publish.yml/badge.svg)](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven-publish.yml)[![Java CI with Maven](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven.yml/badge.svg)](https://github.com/darkmusic/sticky-image-manager/actions/workflows/maven.yml)
 
 This is an application that allows you to manage and launch multiple instances of a Viewer.  It is written in Java 23 and uses JavaFX for the UI.