documentation

Pull request #3362: Feature/ZBX-23027 7.0 D

Merge in WEB/documentation from feature/ZBX-23027-7.0-D to release/7.0

* commit '26a65f468a580ea3b8c89036523edbac311a3134':
  ZBX-23027 added sentences, corrected the note.
  ZBX-23027 clarified ways to bind in LDAP.
  ZBX-23027 formatting.