Update README.md

Author: JohannesRabauer

README.md

@@ -1,6 +1,7 @@
 [![Latest version](https://img.shields.io/maven-central/v/software.xdev/spring-data-eclipse-store?logo=apache%20maven)](https://mvnrepository.com/artifact/software.xdev/spring-data-eclipse-store)
 [![Build](https://img.shields.io/github/actions/workflow/status/xdev-software/spring-data-eclipse-store/check-build.yml?branch=develop)](https://github.com/xdev-software/spring-data-eclipse-store/actions/workflows/check-build.yml?query=branch%3Adevelop)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=xdev-software_spring-data-eclipse-store&metric=alert_status)](https://sonarcloud.io/dashboard?id=xdev-software_spring-data-eclipse-store)
+[![Documentation](https://img.shields.io/maven-central/v/software.xdev/spring-data-eclipse-store?label=docs)](https://spring-eclipsestore.xdev.software/)
 
 <div align="center">
     <img src="assets/Logo.png" height="200" alt="XDEV Spring-Data Eclipse-Store Logo">