Updated new contributor ambassador

Author: sreeram-venkitesh

README.md

@@ -184,9 +184,9 @@ For more information about contributing to the Kubernetes documentation, see:
 
 If you need help at any point when contributing, the [New Contributor Ambassadors](https://kubernetes.io/docs/contribute/advanced/#serve-as-a-new-contributor-ambassador) are a good point of contact. These are SIG Docs approvers whose responsibilities include mentoring new contributors and helping them through their first few pull requests. The best place to contact the New Contributors Ambassadors would be on the [Kubernetes Slack](https://slack.k8s.io/). Current New Contributors Ambassadors for SIG Docs:
 
-| Name                       | Slack                      | GitHub                     |                   
+| Name                       | Slack                      | GitHub                     |
 | -------------------------- | -------------------------- | -------------------------- |
-| Arsh Sharma                | @arsh                      | @RinkiyaKeDad              |
+| Sreeram Venkitesh          | @sreeram.venkitesh         | @sreeram-venkitesh         |
 
 ## Localization READMEs