add a readme packaged with helm charts and don't set helm releases as latest in github

Author: eljohnson92

.github/workflows/helm.yml

@@ -80,3 +80,4 @@ jobs:
         with:
           charts_dir: deploy
           skip_existing: true
+          mark_as_latest: false

deploy/chart/README.md

@@ -0,0 +1,9 @@
+# linode-cloud-controller-manager
+
+The Linode Cloud Controller Manager (CCM) creates a fully supported Kubernetes experience on Linode.
+
+## Installing
+Helm installation instructions are available in our [Deployment Documentation](https://github.com/linode/linode-cloud-controller-manager/blob/main/docs/getting-started/helm-installation.md)
+
+## Values
+Helm values can be found in our default [values.yaml](https://github.com/linode/linode-cloud-controller-manager/blob/main/deploy/chart/values.yaml)