documentation

Pull request #742: [ZBXNEXT-6796,ZBXNEXT-8203] Frontend changes to allow to pass event macros to Media type: Script

Merge in WEB/documentation from feature/ZBXNEXT-8203-6.4-D to release/6.4

* commit 'd34d0350e62f98f0f7a7af098c7431560d962d45':
  get.md changed formatting
  changes.md some rewording
  object.md some rewording
  get.md replaced numbers with text
  - [ZBXNEXT-6796,ZBXNEXT-8203] removed double-quotes from parameters, added more details to examples
  [ZBXNEXT-6796,ZBXNEXT-8203] fixed link to script parameters on api changes page
  [ZBXNEXT-6796,ZBXNEXT-8203] rewording for changelog and object pages
  [ZBXNEXT-6796,ZBXNEXT-8203] added example for script and webhook on mediatype.get page
  [ZBXNEXT-6796,ZBXNEXT-8203] added example for script and webhook on mediatype.get page
  [ZBXNEXT-6796,ZBXNEXT-8203] fixed mediatype.create api response
  object.md fixed sortorder value type
  [ZBXNEXT-6796,ZBXNEXT-8203] updated mediatype api documentation
  [ZBXNEXT-6796,ZBXNEXT-8203] updated mediatype api documentation