Merge pull request #8510 from nmn3m/fix-release-notes-handbook-link

fix: update Release Notes Handbook link to correct URL

Author: k8s-ci-robot

contributors/guide/release-notes.md

@@ -159,4 +159,4 @@ In any other case the release note should be fine.
 * [Behind The Scenes: Kubernetes Release Notes Tips & Tricks - Mike Arpaia, Kolide (KubeCon 2018 Lightning Talk)](https://www.youtube.com/watch?v=n62oPohOyYs)
 
 [kubernetes-repository]: https://git.k8s.io/kubernetes/
-[Release Notes Handbook]: https://github.com/kubernetes/sig-release/tree/master/release-team/role-handbooks/release-notes
+[Release Notes Handbook]: https://github.com/kubernetes/sig-release/blob/master/release-engineering/release-notes.md