documentation

Pull request #542: [ZBX-21535] Updated tables and examples for usergroup API.

Merge in WEB/documentation from feature/ZBX-21535-6.4-D-API to release/6.4

* commit 'e4dde8666adc46f0d330e976ab2ba9e4bf07ca6e':
  [ZBX-21535] Added deprecated property "rights"
  [ZBX-21535] Changed "tag based" to "tag-based"
  [ZBX-21535] Updated required property in Tag based permission object
  [ZBX-21535] Removed unnecessary whitespaces
  [ZBX-21535] Updated tables, examples for usergroup API
  [ZBX-21535] Updated tables, examples for usergroup API