[Snek] [keith-packard/snek] 7ce037: Build docker image locally

[Keith Packard]

  Branch: refs/heads/local-docker
  Home:   https://github.com/keith-packard/snek
  Commit: 7ce037841c749afc7d857c9733573edf97913636
      https://github.com/keith-packard/snek/commit/7ce037841c749afc7d857c9733573edf97913636
  Author: Keith Packard <keithp at keithp.com>
  Date:   2019-11-23 (Sat, 23 Nov 2019)

  Changed paths:
    M .github/workflows/snek.yml
    M Dockerfile
    A action.yml
    A entrypoint.sh

  Log Message:
  -----------
  Build docker image locally

Signed-off-by: Keith Packard <keithp at keithp.com>