documentation

Pull request #1810: Feature/ZBXNEXT-9056 7.0 D

Merge in WEB/documentation from feature/ZBXNEXT-9056-7.0-D to release/7.0

* commit '3b437ad5c988b0825bc57c36ab535d92a0317875':
  Change wording
  Restore XLIFF files to original condition
  [ZBXNEXT-9056-7.0-D] Remove redundant files
  [ZBXNEXT-9056-7.0-D] Remove a sentence and grammar changes
  Remove unneeded files
  Revert "Remove unneeded files"
  Remove unneeded files
  [ZBXNEXT-9056] Remove Plugins.<plugin name>.Capacity parameter