v0.2.0

Merge pull request slicen#1 and slicen#3

Install with:

helm3 install cert-manager-webhook-linode --namespace cert-manager https://github.com/recsyslabs/cert-manager-webhook-linode/releases/download/v0.2.0/cert-manager-webhook-linode-v0.2.0.tgz --set "api.groupName=acme.recsyslabs.com"