message: * terraform/README.md: Mention open points
diff: +# TODO
  +
  +Before we can publish these files, we need to address the following
  +questions:
  +
  +* How do we recommend people manage the overlays for the k8s setup? We want
  + them to modify them, but we also want them to be able to easily see and
  + incorporate any changes we might make. The README currently suggests
  + copying `k8s/overlays`, which might not be the best strategy
  +* Is this the right repo? It's likely that the setup scripts will change at
  + a different pace than the code in this repo, and it might make sense to
  + move them to a dedicated repo
  +* We don't have a good default IPFS endpoint. The README points at the
  + staging node, but that is not the right one for production uses
  +* The images that `graph-node` builds need to be put into the
  + `graphprotocol` namespace in Docker Hub
  +
  # Getting started
  These instructions assume that you are using Google Cloud, and walk you
  