Update the readme with install and deploy instructions.

4 jobs for 27-setup-distribution-via-package-registries-look-left in 1 minute and 10 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Test
passed run-flake8 #718542

00:00:53

passed run-test #718543

00:01:09

passed run-test-package #718544

00:01:03

 
  Deploy
manual publish #718545
allowed to fail manual