message: Add moar comments.
diff: @@ -119,13 +119,17 @@ BOARD_SIZE=9 python3 -m unittest discover tests
  Automated Tests
  ----------------
  -Minigo uses the Kubernetes
  -[Prow](https://github.com/kubernetes/test-infra/tree/master/prow) to
  -automatically test PRs. You can see the status of our automated tests by
  -looking at the Prow and Testgrid UIs:
  +To automatically test PRs, Minigo uses
  +[Prow](https://github.com/kubernetes/test-infra/tree/master/prow), which is a
  +test framework created by the Kubernetes team for testing changes in a hermetic
  +environment. We use prow for running unit tests, linting our code, and
  +launching our test Minigo Kubernetes clusters.
  -Testgrid (Test Results Dashboard): https://k8s-testgrid.appspot.com/sig-big-data
  -Prow (Test-runner dashboard): https://prow.k8s.io/?repo=tensorflow%2Fminigo
  +You can see the status of our automated tests by looking at the Prow and
  +Testgrid UIs:
  +
  +- Testgrid (Test Results Dashboard): https://k8s-testgrid.appspot.com/sig-big-data
  +- Prow (Test-runner dashboard): https://prow.k8s.io/?repo=tensorflow%2Fminigo
  Basics
  ======
  