Readarr Helm chart now available

Hi folks.

I've created a Helm chart for Readarr for quick installation on a Kubernetes cluster.

https://github.com/k8s-at-home/charts/tree/master/charts/readarr

With the project still in its early stages, I've highlighted this in the README so anyone using the chart is aware that they're doing so at their own risk. But as the project matures and we get to our first release. This will really help with the installation for those using K8s.

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$ helm repo add k8s-at-home https://k8s-at-home.com/charts/

$ helm install k8s-at-home/readarr