found rest of url to update

Signed-off-by: Carlos Santana <[email protected]>

leads/onboarding.md

@@ -15,7 +15,7 @@ To ensure quality communication SIG Release Chairs and Technical Leads should:
   - kubernetes-release-team:
     https://groups.google.com/a/kubernetes.io/g/release-team
   - kubernetes-dev:
-    https://groups.google.com/a/kubernetes.io/group/dev
+    https://groups.google.com/a/kubernetes.io/g/dev
   - kubernetes-announce:
     https://groups.google.com/forum/#!forum/kubernetes-announce
   - release-managers:

release-engineering/role-handbooks/branch-manager.md

@@ -185,7 +185,7 @@ krel announce send --tag vX.Y.0-{alpha,beta,rc}.Z --name "<Your Name>" --name <Y
 See the [Release Commands Cheat Sheet](https://github.com/kubernetes/sig-release/blob/master/release-engineering/role-handbooks/patch-release-team.md#release-commands-cheat-sheet) for example commands.
 
 [k-announce-list]: https://groups.google.com/forum/#!forum/kubernetes-announce
-[k-dev-list]: https://groups.google.com/a/kubernetes.io/group/dev
+[k-dev-list]: https://groups.google.com/a/kubernetes.io/g/dev
 [release tools]: https://github.com/kubernetes/release#tools
 [kubernetes/release]: https://github.com/kubernetes/release
 [sendgrid-identity-verification]: https://sendgrid.com/docs/for-developers/sending-email/sender-identity/

release-team/role-handbooks/docs/Release-Timeline.md

@@ -155,7 +155,7 @@ Send a Slack message to those that you select, e.g:
 You'll then want to join these mailing lists if you haven't already:
 >- https://groups.google.com/forum/#!forum/kubernetes-sig-release
 >- https://groups.google.com/forum/#!forum/kubernetes-sig-docs
->- https://groups.google.com/a/kubernetes.io/group/dev
+>- https://groups.google.com/a/kubernetes.io/g/dev
 >
 >Access to Google docs and calendar invites are often based on these mailing lists, so it's a good idea to subscribe.
 >