Change the README.md header description

Author: 2000krysztof

Diff for: README.md

@@ -1,6 +1,10 @@
 # codeflare-operator
 
-Operator for installation and lifecycle management of CodeFlare distributed workload stack.
+The CodeFlare-Operator has embedded two controllers, a [RayCluster controller](https://github.com/project-codeflare/codeflare-operator/blob/main/pkg/controllers/raycluster_controller.go) which creates resources including secrets, ingress, routes, service, serviceaccounts, clusterrolebinding resources; all needed for the RayClusters created to work as expected.
+
+There's an [AppWrapper Controller ](https://github.com/project-codeflare/appwrapper/blob/main/internal/controller/appwrapper/appwrapper_controller.go), which is a flexible and workload-agnostic mechanism to enable Kueue to manage a group of Kubernetes resources as a single logical unit and to provide an additional level of automatic fault detection and recovery.
+
+For each controller, there are webhooks in place that can be found [here](https://github.com/project-codeflare/codeflare-operator/tree/main/pkg/controllers).
 
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