Update CONTRIBUTING.md to reference CNCF CoC

Signed-off-by: John Kastner <jkastner@amazon.com>

Author: john-h-kastner-aws

CONTRIBUTING.md

@@ -45,9 +45,9 @@ Looking at the existing issues is a great way to find something to contribute on
 
 
 ## Code of Conduct
-This project has adopted the [Amazon Open Source Code of Conduct](https://aws.github.io/code-of-conduct).
-For more information see the [Code of Conduct FAQ](https://aws.github.io/code-of-conduct-faq) or contact
-opensource-codeofconduct@amazon.com with any additional questions or comments.
+This project follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/main/code-of-conduct.md).
+For more information see the [Code of Conduct FAQ](https://www.cncf.io/conduct/faq/) or contact
+conduct@cncf.io with any additional questions or comments.
 
 
 ## Security issue notifications