documentation

Pull request #2277: Feature/ZBX-23850 6.0 D

Merge in WEB/documentation from feature/ZBX-23850-6.0-D to release/6.0

* commit '031a7eac6242ceaa0e797f8576115bdcfdb9a43b':
  ZBX-23850 changed the arrows.
  ZBX-23850 added more notes to the Interface parameter.
  ZBX-23850 Added more information of the required fields, corrected a file path and name, corrected a key formatting.