documentation

Pull request #2090: feature/ZBX-25479-7.0-D. asynchronous poller state calculation.

Merge in WEB/documentation from feature/ZBX-25479-7.0-D to release/7.0

* commit '6105d9bf8fea3d8d81c6ff7272d1a75973de6ceb':
  [ZBX-25479] updated server/proxy configuration parameter formatting
  [ZBX-25479] asynchronous poller state calculation