Merge pull request #6678 from AugustasV/group-mentee-guide-collab-url-fix

group-mentee-guide broken link fix

Author: k8s-ci-robot

mentoring/programs/group-mentee-guide.md

@@ -85,4 +85,4 @@ guidance as a founding member of this program!
 [community membership requirements doc]: /community-membership.md
 [SIG List]: /sig-list.md
 [Code Review Expectations]: /contributors/guide/expectations.md
-[Collaboration on k8s]: /contributors/guide/collab.md
+[Collaboration on k8s]: /contributors/guide/contributing.md