Update README.md

Author: schenkd

README.md

@@ -1,4 +1,6 @@
-# nginx ui
+# nginx ui 
+
+![Docker Image CI](https://github.com/schenkd/nginx-ui/workflows/Docker%20Image%20CI/badge.svg) 
 
 ![Image of Nginx UI](https://i.ibb.co/XXcfsDp/Bildschirmfoto-2020-06-20-um-18-40-27.png)