Add report, license and release badges to README

Signed-off-by: Hidde Beydals <[email protected]>

Author: hiddeco

README.md

@@ -1,6 +1,9 @@
 # Image automation controller
 
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/4789/badge)](https://bestpractices.coreinfrastructure.org/projects/4789)
+[![report](https://goreportcard.com/badge/github.com/fluxcd/image-automation-controller)](https://goreportcard.com/report/github.com/fluxcd/image-automation-controller)
+[![license](https://img.shields.io/github/license/fluxcd/image-automation-controller.svg)](https://github.com/fluxcd/image-automation-controller/blob/main/LICENSE)
+[![release](https://img.shields.io/github/release/fluxcd/image-automation-controller/all.svg)](https://github.com/fluxcd/image-automation-controller/releases)
 
 This controller automates updates to YAML when new container images
 are available.