documentation

Pull request #4126: Feature/DEV-4905 7.5 D

Merge in WEB/documentation from feature/DEV-4905-7.5-D to release/8.0

* commit 'b9545756bf6eb8cba4d489e7a6569b7fb12e1f8f':
  DEV-4905 added a sentence about audit log entries availability.
  DEVCNEXT-1232 added info about timezones.
  DEVCNEXT-1232 added audit log page.