Generated with:

  $ git remote add project-template git://github.com/opencontainers/project-template.git
  $ git fetch project-template
  $ git show --oneline project-template/master
  61d73a3 (project-template/master) Merge pull request opencontainers#40 from wking/minor-patch-bullet
  $ git merge --squash --allow-unrelated-histories project-template/master
  $ git checkout HEAD -- .pullapprove.yml MAINTAINERS README.md RELEASES.md
  $ git checkout project-template/master -- GOVERNANCE.md LICENSE
  $ emacs README.md CONTRIBUTING.md # unify around project-template's CONTRIBUTING.md approach
  $ emacs meeting.ics  # update link to point at CONTRIBUTING.md#meetings
  $ git commit -sv

I personally prefer non-squash merges to preserve history and ease
future updates, but that approach has not been popular within the OCI
[1,2], so I'm going with a squash-merge here.

I'm sticking with the local RELEASES.md, because it uses four-space
indents.  I've filed [3] to upstream that change.

I've also filed [4] upstreaming our local wording change from 70ba4e6
(meeting: Bump January meeting from the 3rd to the 10th, 2017-12-07,
opencontainers#943).

I've also fixed the GOVERNANCE.md security link in flight with [5].

I've left the other in-flight project-template changes alone [6].

I've wrapped the URL in meetings.ics to avoid [7]:

  Line length should not be longer than 75 characters near line opencontainers#33
  Reference: RFC 5545 3.1. Content Lines

[1]: opencontainers/go-digest#20 (comment)
[2]: opencontainers/runtime-tools#274 (comment)
[3]: opencontainers/project-template#54
[4]: opencontainers/project-template#55
[5]: opencontainers/project-template#34
[6]: https://github.com/opencontainers/project-template/pulls
[7]: https://icalendar.org/validator.html

Signed-off-by: W. Trevor King <wking@tremily.us>