docs: add example secrets and README doc

charts/influxdb-enterprise/README.md

+# InfluxDB Enterprise
+
+## QuickStart
+
+```bash
+helm repo add influxdata https://helm.influxdata.com/
+helm upgrade --install influxdb influxdata/influxdb-enterprise --namespace monitoring
+```
+
+> **Tip**: `helm upgrade --install [RELEASE] [CHART] [FLAGS]` can be shortened : `helm upgrade -i [RELEASE] [CHART] [FLAGS]`
+
+## Introduction
+
+This chart bootstraps an InfluxDB Enterprise cluster, with a StatefulSet for both the Meta and Data nodes.
+
+## Prerequisites
+
+- Kubernetes 1.4+
+- PV provisioner support in the underlying infrastructure (optional)
+
+### Secrets
+
+This chart REQUIRES some mandatory secrets in-order to function.
+
+#### License
+
+InfluxDB Enterprise requires a license. To provide the license, you can either store it in a secret or provide a string within your `values.yaml`. We recommend using a secret.
+
+```yaml
+license:
+  # You can put your license key here for testing this chart out,
+  # but we STRONGLY recommend using a license file stored in a secret
+  # when you ship to production.
+  # key: "your license key"
+  secret:
+    name: license
+    key: json
+```
+
+#### Shared Secret
+
+The meta cluster requires a shared internal secret to secure communication. This must be provided by specifying a secret name in the `values.yaml` file.
+
+The secret MUST container a key called `secret` that is a randomly generated string.
+
+```yaml
+meta:
+  sharedSecret:
+    secretName: shared-secret
+```
+
+#### Authentication (Optional)
+
+If you want to configure authentication for your data nodes, you must provide the following within your `values.yaml`:
+
+```yaml
+# A secret with keys "username" and "password" is required
+auth:
+  secretName: auth
+```
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+helm upgrade --install my-release influxdata/influxdb-enterprise
+```
+
+The command deploys InfluxDB Enterprise on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
+
+> **Tip**: List all releases using `helm list`
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```bash
+helm uninstall my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.

charts/influxdb-enterprise/example-secrets.yaml

+apiVersion: v1
+kind: Secret
+metadata:
+  name: license
+data:
+  json: FAKE LICENSE KEY
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: auth
+data:
+  # admin / admin
+  username: YWRtaW4=
+  password: YWRtaW4=
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: shared-secret
+data:
+  secret: MY RANDOM STRING