message: Update CONTRIBUTING.md
  Fix hygen documentation link on contributing page
diff: @@ -148,7 +148,7 @@ Whether it's code, design, typo or documentation, every contribution is welcomed
  [babel-handbook-transformation]: https://github.com/jamiebuilds/babel-handbook/blob/master/translations/en/plugin-handbook.md#toc-transformation-operations
  [babel-handbook-manipulation]: https://github.com/jamiebuilds/babel-handbook/blob/master/translations/en/plugin-handbook.md#manipulation
  [all-contributors-bot-command]: https://allcontributors.org/docs/en/bot/usage#all-contributors-add
  -[hygen-documentation]: https://www.hygen.io/quick-start
  +[hygen-documentation]: https://www.hygen.io/docs/quick-start
  <!-- Repo links -->
  