Update API Documentation/Dashboards
This MR is a collection of API runbook updates falling out of the readiness review: gitlab-com/gl-infra/delivery#1463 (closed)
This includes changes to any location where the API may be mentioned and touches the configuration of our dashboards to remove VM related items that no longer apply to this service.
Addresses: gitlab-com/gl-infra/delivery#1568 (closed)
Edited by John Skarbek