Update Helm chart README and LICENSE

charts/thermite/LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2020 Dollar Shave Club, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

charts/thermite/README.md

@@ -13,14 +13,30 @@ Helm package manager.
 
 To install the chart with the release name `thermite` run:
 
-    helm repo add dollarshaveclub
     helm repo add dollarshaveclub https://dollarshaveclub.github.io/helm-charts-public
+    helm install thermite dollarshaveclub/thermite
 
-The command deploys Thermite  on the Kubernetes cluster using the default
+The command deploys Thermite on the Kubernetes cluster using the default
 configuration. The configuration section lists the parameters that can be
 configured during installation.
 
-## Uninstallng the chart
+## Removing images
+
+The chart installs one CronJob in charge of running Thermite periodically (every
+day at midnight based on the timezone of the kube-controller-manager), which
+removes images from Amazon Elastic Container Registry repositories with a valid
+prune period resource tag (`thermite:prune-period`) that were pushed longer ago
+than the repository's prune period, excluding images that are currently deployed
+in the Kubernetes cluster. If you don't want to wait until the job is triggered
+by the cronjob, you can create one manually using the following command:
+
+    kubectl create job initial-thermite-job --from=cronjob/my-release-thermite
+
+By default, the chart will disable image removal and only log/report the images
+that are eligible. To enable image removal, the `removeImages` parameter must be
+set to `true`.
+
+## Uninstalling the chart
 
 To uninstall the `thermite` deployment run:
 
@@ -30,4 +46,11 @@ To uninstall the `thermite` deployment run:
 
 Please see the values schema reference documentation in Artifact Hub for a list
 of the configurable parameters of the chart and their default values. Specify
-each parameter using the `--set key=value[,key=value]` argument to helm install.
+each parameter using the `--set key=value[,key=value]` argument to helm install.
+For example,
+
+    helm install thermite --set removeImages=true dollarshaveclub/thermite
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+    helm install thermite -f values.yaml dollarshaveclub/thermite