Update Grafana chart to 5.0.13

Grafana version still 6.7.1 but Helm chart got changes.
Make target and website, add license header.

build/Makefile

@@ -453,7 +453,7 @@ setup-grafana: PASSWORD ?= admin
 setup-grafana:
 	$(DOCKER_RUN) kubectl apply -f $(mount_path)/build/grafana/
 	$(DOCKER_RUN) \
-		helm upgrade --install --wait grafana stable/grafana --version=5.0.11  --namespace metrics \
+		helm upgrade --install --wait grafana stable/grafana --version=5.0.13  --namespace metrics \
 		--set persistence.enabled=$(PVC),server.persistentVolume.size=$(PV_SIZE) \
 		--set adminPassword=$(PASSWORD) -f $(mount_path)/build/grafana.yaml
 

build/grafana.yaml

@@ -1,3 +1,17 @@
+# Copyright 2020 Google LLC All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 service:
   port: 3000
 tolerations:

site/content/en/docs/Guides/metrics.md

@@ -190,7 +190,7 @@ kubectl apply -f ./build/grafana/
 Now we can install [grafana chart](https://github.com/helm/charts/tree/master/stable/grafana) from stable repository. (Replace `<your-admin-password>` with the admin password of your choice)
 
 ```bash
-helm install --wait --name grafana stable/grafana --version=5.0.11 --namespace metrics \
+helm install --wait --name grafana stable/grafana --version=5.0.13 --namespace metrics \
   --set adminPassword=<your-admin-password> -f ./build/grafana.yaml
 ```