documentation

Pull request #2579: Feature/ZBX-24714 7.2 D

Merge in WEB/documentation from feature/ZBX-24714-7.2-D to release/7.2

* commit '21763b91723faf83bd11f038cd85fac6abece653':
  ZBX-24714 added spaces.
  ZBX-24714 updated screenshot.
  ZBX-24714 added an entry to the what's new page.