Update README.md with release version badges

README.md

@@ -2,6 +2,9 @@
 [![Release Charts](https://github.com/Qonstrukt/helm-charts/actions/workflows/release.yaml/badge.svg)](https://github.com/Qonstrukt/helm-charts/actions/workflows/release.yaml)
 [![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/qonstrukt)](https://artifacthub.io/packages/search?repo=qonstrukt)
 
+![Latest PHP release](https://img.shields.io/github/v/release/qonstrukt/helm-charts?filter=php-*)
+![Latest UniFi Controller release](https://img.shields.io/github/v/release/qonstrukt/helm-charts?filter=unifi-controller-*)
+
 Helm Charts for several Docker images:
 - [PHP](https://hub.docker.com/r/qonstrukt/php)
 - [UniFi Controller](https://hub.docker.com/r/linuxserver/unifi-controller)
@@ -12,4 +15,4 @@ Helm Charts for several Docker images:
 ```bash
 $ helm repo add qonstrukt https://qonstrukt.github.io/helm-charts/
 $ helm repo update
-```
+```