message: Fix good first issue link in README.md
diff: @@ -200,5 +200,5 @@ Send issues and pull requests with your ideas. For more information about
  contributing PRs and issues, see our
  [Contribution Guidelines](https://github.com/facebook/jest/blob/master/CONTRIBUTING.md).
  -[Good First Issue](https://github.com/facebook/jest/labels/Good%20First%20Issue)
  +[Good First Issue](https://github.com/facebook/jest/labels/Good%20First%20Issue%20%3Awave%3A)
  is a great starting point for PRs.
  