message: Add link to CoC
diff: @@ -23,3 +23,7 @@ root of this repository.
  At this point running `yarn add` or `yarn install` in any of the sub directories
  should update the appropriate `package.json`,
  and update the `yarn.lock` in the root of the repo.
  +
  +## Code of Conduct
  +
  +We expect everyone to abide by our [Code of Conduct](CODE_OF_CONDUCT.md). Please read it.
  