documentation

Pull request #2698: ZBX-26310 added info regarding supported data types.

Merge in WEB/documentation from feature/ZBX-26310-7.2-D to release/7.2

* commit '22dc95c7a3f7147a2e8c160a204275a5ece3bdbf':
  ZBX-26310 corrected the title formatting.
  ZBX-26310 removed data types descriptions, moved the section to more suitable location.
  ZBX-26310 corrected the supported data types section.
  ZBX-26310 formatting fixes.
  ZBX-26310 added info regarding supported data types.