Update README

README.md

@@ -1,10 +1,34 @@
 # Netflux on Kubernetes
 
-## Installation
+This is a learning project to migrate the self-hosted services that I host at
+netflux.io to Kubernetes.
+
+![Me deploying my blog on Kubernetes](https://git.netflux.io/rob/netflux-kubernetes/raw/branch/main/picture.jpg)
+
+This repository contains the Kubernetes manifests, which are built using
+Kustomize. Helm chart dependencies are inflated and managed in this repository
+to improve observability. The cluster is deployed to DigitalOcean managed K8S
+in production, but can be easily applied to a local cluster for testing.
+
+## Building
+
+The manifests can be built with:
+
+```
+make dev
+```
+
+and applied with:
+
+```
+make dev | kubectl apply -f -
+```
+
+## Cluster setup
 
 ### cert-manager
 
-cert-manager should only be installed in production. It cannot be installed as a subchart.
+cert-manager should only be installed in production. It is not managed inside this repository.
 
 See: https://cert-manager.io/docs/installation/helm/