Update README.md

Author: virtualzone

README.md

@@ -1,6 +1,6 @@
 # Compose Updater
 
-[![](https://img.shields.io/github/workflow/status/virtualzone/compose-updater/build)](https://github.com/virtualzone/compose-updater/actions)
+[![](https://img.shields.io/github/actions/workflow/status/virtualzone/compose-updater/build.yml?branch=master)](https://github.com/virtualzone/compose-updater/actions)
 [![](https://img.shields.io/github/v/release/virtualzone/compose-updater)](https://github.com/virtualzone/compose-updater/releases)
 [![](https://img.shields.io/github/release-date/virtualzone/compose-updater)](https://github.com/virtualzone/compose-updater/releases)
 [![](https://img.shields.io/docker/image-size/virtualzone/compose-updater)](https://hub.docker.com/r/virtualzone/compose-updater)