Follow KF manifests guidelines

manifests/kustomize/OWNERS

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+approvers:
+  - tarilabs
+  - rareddy
+  - Tomcli
+reviewers:
+  - tarilabs
+  - rareddy
+  - Tomcli

manifests/kustomize/README.md

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+# Install Kubeflow Model Registry
+
+This folder contains [Kubeflow Model Registry](https://www.kubeflow.org/docs/components/model-registry/installation/) Kustomize manifests
+
+## Installation
+
+To install Kubeflow Model Registry, follow [Kubeflow Model Registry deployment documentation](https://www.kubeflow.org/docs/components/model-registry/installation/)
+
+The following instructions will summarize how to deploy Model Registry as separate component in the context of a default Kubeflow >=1.8 installation.
+
+```bash
+kubectl apply -k overlays/db
+```
+
+As the default Kubeflow installation provides an Istio mesh, apply the necessary manifests:
+
+```bash
+kubectl apply -k options/istio
+```
+
+Check everything is up and running:
+
+```bash
+kubectl wait --for=condition=available -n kubeflow deployment/model-registry-deployment --timeout=2m
+kubectl logs -n kubeflow deployment/model-registry-deployment
+```
+
+Optionally, you can also port-forward the REST API container port of Model Registry to interact with it from your terminal:
+
+```bash
+kubectl port-forward svc/model-registry-service -n kubeflow 8081:8080
+```
+
+And then, from another terminal:
+
+```bash
+curl -sX 'GET' \
+  'http://localhost:8081/api/model_registry/v1alpha3/registered_models?pageSize=100&orderBy=ID&sortOrder=DESC' \
+  -H 'accept: application/json' | jq
+```
+
+## Usage
+
+For a basic usage of the Kubeflow Model Registry, follow the [Kubeflow Model Registry getting started documentation](https://www.kubeflow.org/docs/components/model-registry/getting-started/)
+
+## Uninstall
+
+To uninstall the Kubeflow Model Registry run:
+
+```bash
+# Delete istio options
+kubectl delete -k options/istio
+
+# Delete model registry db and deployment
+kubectl delete -k overlays/db
+```