MSSQL

...G...... [ZBXNEXT-8947] updated README with supported platforms

* commit '63bfb170e3165560436fd12b31f7d9cc1876b9d3':
  ...G...... [ZBXNEXT-8947] improve Readme
  ...G...... [ZBXNEXT-8947] make platform info in README more explicit
  ...G...... [ZBXNEXT-8947] fixed README ToC
  ...G...... [ZBXNEXT-8947] updated README with supported platforms