add docu section on using OCI image dependency in Chart.yaml

README.md

@@ -8,10 +8,24 @@ The chart has been battle tested in Magento2 OpenSource and Adobe Commerce produ
 
 ## TL;DR
 
-```
+Install via CLI:
+
+```bash
 helm install --create-namespace -n magento2-demo magento2 oci://registry-1.docker.io/phoenixmedia/magento --version 2.7.0
 ```
 
+Add as dependency to existing chart:
+
+```yaml
+apiVersion: v2
+name: my-project-chart
+...
+dependencies:
+  - name: magento
+    version: 2.7.0
+    repository: oci://registry-1.docker.io/phoenixmedia
+```
+
 ## Magento2 base image
 The chart references [PHOENIX MEDIA's](https://www.phoenix-media.eu) Magento2 Docker image. It consists of an
 [Alpine nginx+PHP8.1 base image](https://github.com/PHOENIX-MEDIA/docker-nginx-php), [Magento OpenSource 2.4.4 source code](https://github.com/magento/magento2)