tree 178f344cb33a15e375e6802bf9869876715eed7a
parent 64b618eac03ec92415430663f708f80d3ff97add
author David Gow <davidgow@google.com> 1565042974 -0700
committer David Gow <davidgow@google.com> 1565045344 -0700

Update the prow-presubmit README and test Dockerfile

This splits out the instructions for pushing the updated presubmit
images and testing them locally. It also clarifies a few things here and
there.

Change-Id: Ia505462cb29ff0eda8d0b7edcb89be3119046a68
Signed-off-by: David Gow <davidgow@google.com>