Docs: Update audit events documentation to show the new filtering options
Problem to solve
Once the group and project audit events have filtering enabled as part of this epic, we should update the Audit Events documentation to reflect the instance, group and project level changes: https://docs.gitlab.com/ee/administration/audit_events.html#group-events-starter
Either update each section (Group, Project and Instance) with screenshots of the filtering options and how to use them or add a new section dedicated to filtering options.
Who can address the issue
Anyone but knowledge of Audit Events is preferential.