[Snek] [keith-packard/snek] e70bb6: Update README.md recent work items

[Keith Packard]

  Branch: refs/heads/master
  Home:   https://github.com/keith-packard/snek
  Commit: e70bb6fd60938f233f7db4d83df912a5ab2efe98
      https://github.com/keith-packard/snek/commit/e70bb6fd60938f233f7db4d83df912a5ab2efe98
  Author: Keith Packard <keithp at keithp.com>
  Date:   2019-04-22 (Mon, 22 Apr 2019)

  Changed paths:
    M README.md

  Log Message:
  -----------
  Update README.md recent work items

Remove dictionaries, add Crickit FeatherWing port

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