Update Readme

Readme.md

@@ -1,13 +1,34 @@
 # Helm repository for Mimir Rules Kubernetes controller
 
 K8S controller to manage Mimir Alerting and Recording rules with dynamic tenants, based on namespace name or annotations.
+GitHub repository with code: https://github.com/springernature/o11y-rules-telemetry-operator
 
-## Adding Helm repository
+[!WARNING]
+> Installing this Helm Chart will install a new CRD `MimirRules` in the cluster. Take this into account for CRD updates or when deleting the controller, those operations will require manual steps with `kubectl delete/apply`.
+
+## Installing
 
 [Helm](https://helm.sh) must be installed to use the charts.
 Please refer to Helm's [documentation](https://helm.sh/docs/) to get started.
 
-Once Helm is set up properly, add the repo as follows:
+Once Helm is set up properly, you have two ways to install the chart.
+
+## 1. Using GitHub registry with Helm
+
+To show the chart information and see the templates:
+
+```console
+helm show all oci://ghcr.io/springernature/charts/mimirrules-controller --version 1.0.3
+helm template mimirrules-controller oci://ghcr.io/springernature/charts/mimirrules-controller --version 1.0.3
+```
+
+```console
+helm upgrade --install mimirrules-controller oci://ghcr.io/springernature/charts/mimirrules-controller --version 1.0.3
+```
+
+## 2. Adding Helm repository
+
+First, add this Helm repository:
 
 ```console
 helm repo add o11y-rules-telemetry-operator https://springernature.github.io/o11y-rules-telemetry-operator
@@ -16,17 +37,12 @@ helm repo update
 
 You can then run `helm search repo o11y-rules-telemetry-operator` to see the charts.
 
-## Using helm chart
-
 To install the app chart in the Kubernetes cluster.
 
 ```console
-helm upgrade --install mimirrules o11y-rules-telemetry-operator/mimirrules
+helm upgrade --install mimirrules-controller o11y-rules-telemetry-operator/mimirrules-controller
 ```
 
-This will install CRD `MimirRules`. Take this into account for CRD updates or when deleting the controller, those operations will require manual steps with `kubectl delete/apply`.
-
-
 ### Values
 
 | Key | Type | Default | Description |