add best practices badge

Signed-off-by: Daniel Holbach <[email protected]>

README.md

@@ -1,5 +1,6 @@
 # kured - Kubernetes Reboot Daemon
 
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/8867/badge)](https://www.bestpractices.dev/projects/8867)
 [![Artifact HUB](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/kured)](https://artifacthub.io/packages/helm/kured/kured)
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fkubereboot%2Fkured.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fkubereboot%2Fkured?ref=badge_shield)
 [![CLOMonitor](https://img.shields.io/endpoint?url=https://clomonitor.io/api/projects/cncf/kured/badge)](https://clomonitor.io/projects/cncf/kured)