Updated contribution page

pages/contributing.md

@@ -6,6 +6,8 @@ title: Contributing
 Rush is developed in the [rushstack](https://github.com/microsoft/rushstack/)
 monorepo on GitHub.
 
+Contribute to the documentation website in the [rushjs.io-website](https://github.com/microsoft/rushjs.io-website) on GitHub.
+
 For general instructions on building Rush and guidelines for submitting PRs, please read the
 [Contributing](https://rushstack.io/pages/contributing/get_started/) documentation for the Rush Stack
 monorepo.