updated README

Author: jruaux

README.adoc

@@ -5,7 +5,7 @@
 :project-group:   com.redislabs
 :project-version: 0.1.0
 
-image:https://img.shields.io/github/workflow/status/{project-owner}/{project-name}/Build?logo=github["Build Status", link="https://github.com/{project-owner}/{project-name}/actions"]
+image:https://github.com/{project-owner}/{project-name}/actions/workflows/gradle.yml/badge.svg["Build Status", link="https://github.com/{project-owner}/{project-name}/actions"]
 image:https://codecov.io/gh/{project-owner}/{project-name}/branch/master/graph/badge.svg?token=MTMRRGEWBD["Coverage", link="https://codecov.io/gh/{project-owner}/{project-name}"]
 
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