Add a note about use of personal accounts within team data

Part of https://gitlab.developers.cam.ac.uk/uis/devops/hr/hr-systems/-/issues/21

docs/howtos/create-gcloudadmin-account.md

@@ -35,6 +35,10 @@ role in your team. Generally teams have three roles: "view" which allows read-on
 Google Cloud console, "deploy" which allows impersonation of the terraform deploy service account
 but no elevated console access and "admin" which grants full rights in the Google Cloud Console.
 
+You may grant your personal account (`{crsid}@cam.ac.uk`) the "view" role, which allows you to
+browse the GCP console without switching accounts and free from the fear of accidentally making
+changes via click-ops.
+
 ## Open a Merge Request
 
 Open a Merge Request on the [team-data