helm: readme file

helm/README.md

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+# Scylla Charts
+
+Helm Charts allows for customization and deployments of Scylla, Scylla Manager
+and Scylla Operator on Kubernetes environments.
+
+## Prerequisites
+
+- Kubernetes 1.16+
+- Helm 3+
+
+## Usage
+
+[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:
+
+```console
+helm repo add scylla-operator https://storage.googleapis.com/scylla-operator-charts
+```
+
+You can then run `helm search repo scylla-operator` to see the charts.
+
+## Install Chart
+
+```console
+# Install Scylla Operator
+$ helm install [NAME] scylla-operator/scylla-operator --create-namespace --namespace scylla-operator
+
+# Install Scylla Manager
+$ helm install [NAME] scylla-operator/scylla-manager --create-namespace --namespace scylla-manager
+
+# Install Scylla 
+$ helm install [NAME] scylla-operator/scylla --create-namespace --namespace scylla
+
+```