documentation

Pull request #2512: Feature/ZBX-23449 7.2 D

Merge in WEB/documentation from feature/ZBX-23449-7.2-D to release/7.2

* commit '252efab1db2b714f10b0abbf899c45bf038a772a':
  ZBX-23449 deleted unnecessary passage.
  ZBX-23449-7.0 links fixed
  ZBX-23449-7.0 link and formatting fixes
  ZBX-23449-7.0 formatted and edited.