updating README

clusters/management-cluster/setup-acs/README.md

@@ -1,4 +1,14 @@
 
 ![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)
 
-# TODO
+# Overview
+
+This "wrapper" Helm Chart is used to deploy Advanced Cluster Security (ACS) using a GitOps approach. 
+It calls the Chart [rhacs-setup](https://artifacthub.io/packages/helm/openshift-bootstraps/rhacs-setup) which mainly takes care to
+
+- Deploy the Operator and verify if the Operators installation was successful
+- Deploy Central if required
+- Deploy Secured Cluster
+- Add a console link in the action menu of OpenShift
+
+The values.yaml provides an example of possible settings.