Update README for kafka-manager

I updated the DOCS gotmpl to conform to the original docs as stated by Joris (overwritten in a recent docs update) and I removed the entry from .helmdocsignore.

.helmdocsignore

@@ -1,4 +1,3 @@
-charts/kafka-manager/
 charts/radar-backend/
 charts/smtp/
 external/

charts/kafka-manager/README.md

@@ -1,27 +1,44 @@
 
 
-# kafka-manager
+# Kafka Manager Helm Chart
 
-![Version: 2.2.0](https://img.shields.io/badge/Version-2.2.0-informational?style=flat-square) ![AppVersion: 1.3.3.18](https://img.shields.io/badge/AppVersion-1.3.3.18-informational?style=flat-square)
+[Kafka Manager](https://github.com/yahoo/kafka-manager) is a tool for managing [Apache Kafka](http://kafka.apache.org/).
 
-A tool for managing Apache Kafka.
+## TL;DR;
 
-**Homepage:** <https://github.com/yahoo/kafka-manager>
+```bash
+$ helm install stable/kafka-manager
+```
 
-## Maintainers
+## Prerequisites
 
-| Name | Email | Url |
-| ---- | ------ | --- |
-| giacomoguiulfo | <giacomoguiulfo@gmail.com> |  |
-| ssalaues | <salim.salaues@scality.com> |  |
+- Kubernetes 1.9+ with Beta APIs enabled
 
-## Source Code
+## Installing the Chart
 
-* <https://github.com/yahoo/kafka-manager>
+To install the chart with the release name `my-release`:
 
-## Requirements
+```bash
+$ helm install --name my-release stable/kafka-manager
+```
 
-Kubernetes: `^1.8.0-0`
+The command deploys Kafka Manager 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 delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters of the Kafka Manager chart and their default values.
 
 ## Values
 
@@ -46,7 +63,7 @@ Kubernetes: `^1.8.0-0`
 | zookeeper | object | `{"enabled":false,"env":{"ZK_HEAP_SIZE":"1G"},"persistence":{"enabled":false}}` | ---------------------------------------------------------------------------- |
 | zkHosts | string | `"cp-zookeeper:2181"` |  |
 | image.repository | string | `"radarbase/kafka-manager"` |  |
-| image.tag | string | `"1.3.3.18"` |  |
+| image.tag | string | `nil` | Overrides the image tag whose default is the chart appVersion. |
 | image.pullPolicy | string | `"IfNotPresent"` |  |
 | imagePullSecrets | list | `[]` | Docker registry secret names as an array |
 | disable_tls | bool | `false` | Disable TLS (reconfigures Ingress and sets URLs to use HTTP) |
@@ -57,5 +74,17 @@ Kubernetes: `^1.8.0-0`
 | ingress.hosts | list | `["localhost"]` | Hosts to accept requests from |
 | ingress.tls.secretName | string | `"radar-base-tls"` | TLS Secret Name |
 
-----------------------------------------------
-Autogenerated from chart metadata using [helm-docs v1.13.1](https://github.com/norwoodj/helm-docs/releases/v1.13.1)
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```console
+$ helm install stable/kafka-manager --name my-release \
+    --set ingress.enabled=true
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
+
+```console
+$ helm install stable/kafka-manager --name my-release -f values.yaml
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)

charts/kafka-manager/README.md.gotmpl

@@ -0,0 +1,56 @@
+# Kafka Manager Helm Chart
+
+[Kafka Manager](https://github.com/yahoo/kafka-manager) is a tool for managing [Apache Kafka](http://kafka.apache.org/).
+
+## TL;DR;
+
+```bash
+$ helm install stable/kafka-manager
+```
+
+## Prerequisites
+
+- Kubernetes 1.9+ with Beta APIs enabled
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+$ helm install --name my-release stable/kafka-manager
+```
+
+The command deploys Kafka Manager 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 delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters of the Kafka Manager chart and their default values.
+
+{{ template "chart.valuesSection" . }}
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```console
+$ helm install stable/kafka-manager --name my-release \
+    --set ingress.enabled=true
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
+
+```console
+$ helm install stable/kafka-manager --name my-release -f values.yaml
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)