Merge pull request #5335 from championshuttler/updateOwner

Update the OWNERS for upstream marketing sub group

Author: k8s-ci-robot

communication/marketing-team/OWNERS

@@ -8,6 +8,9 @@ reviewers:
 approvers:
   - parispittman
   - mbbroberg
+  - Pensu
+  - rajula96reddy
+  - kaslin
 labels:
   - sig/contributor-experience
   - area/contributor-comms