documentation

Pull request #2510: Feature/ZBX-23449 6.0 D

Merge in WEB/documentation from feature/ZBX-23449-6.0-D to release/6.0

* commit '241ca5186bab90acd6c418ee9d343486aaf45b4b':
  ZBX-23449-6.0 link fixed
  ZBX-23449-6.0 links fixed
  ZBX-23449-6.0 link and formatting fixes
  ZBX-23449-6.0 edited
  ZBX-23449-6.0 formatting changes
  ZBX-23449-6.0 formatted and edited
  ZBX-23449-6.0 formatting changes