Review readme (#6399)

Add config example

stable/prometheus-blackbox-exporter/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: Prometheus Blackbox Exporter
 name: prometheus-blackbox-exporter
-version: 0.1.0
+version: 0.1.1
 appVersion: 0.12.0
 home: https://github.com/prometheus/blackbox_exporter
 sources:

stable/prometheus-blackbox-exporter/OWNERS

@@ -0,0 +1,4 @@
+approvers:
+- gianrubio
+reviewers:
+- gianrubio

stable/prometheus-blackbox-exporter/README.md

@@ -2,12 +2,12 @@
 
 Prometheus exporter for blackbox testing
 
-Learn more: [https://github.com/prometheus/blackbox_exporter](https://github.com/prometheus/blackbox_exporter])
+Learn more: [https://github.com/prometheus/blackbox_exporter](https://github.com/prometheus/blackbox_exporter)
 
 ## TL;DR;
 
 ```bash
-$ helm install stable/blackbox-exporter
+$ helm install stable/prometheus-blackbox-exporter
 ```
 
 ## Introduction
@@ -23,7 +23,7 @@ This chart creates a Blackbox-Exporter deployment on a [Kubernetes](http://kuber
 To install the chart with the release name `my-release`:
 
 ```bash
-$ helm install --name my-release stable/blackbox-exporter
+$ helm install --name my-release stable/prometheus-blackbox-exporter
 ```
 
 The command deploys Blackbox Exporter on the Kubernetes cluster using the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
@@ -72,14 +72,14 @@ Specify each parameter using the `--set key=value[,key=value]` argument to `helm
 ```bash
 $ helm install --name my-release \
     --set key_1=value_1,key_2=value_2 \
-    stable/blackbox-exporter
+    stable/prometheus-blackbox-exporter
 ```
 
 Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
 
 ```bash
 # example for staging
-$ helm install --name my-release -f values.yaml stable/blackbox-exporter
+$ helm install --name my-release -f values.yaml stable/prometheus-blackbox-exporter
 ```
 
 > **Tip**: You can use the default [values.yaml](values.yaml)

stable/prometheus-blackbox-exporter/values.yaml

@@ -7,14 +7,15 @@ image:
 
 nodeSelector: {}
 
-config: {}
-  # http_2xx:
-  #   prober: http
-  #   timeout: 5s
-  #   http:
-  #     valid_http_versions: ["HTTP/1.1", "HTTP/2"]
-  #     no_follow_redirects: false
-  #     preferred_ip_protocol: "ip4" # defaults to "ip6"
+config:
+  modules:
+    http_2xx:
+      prober: http
+      timeout: 5s
+      http:
+        valid_http_versions: ["HTTP/1.1", "HTTP/2"]
+        no_follow_redirects: false
+        preferred_ip_protocol: "ip4"
 
 resources:
   # limits: