Add a note on Mac support (or lack thereof) to the Power Query section.

Author: mildbyte

content/sql-client-instructions/ExcelPowerQuery.mdx

@@ -7,9 +7,9 @@ Note that in Office 2016 Professional, 2019 Professional and Microsoft 365 Apps
 have access to a direct PostgreSQL import functionality. These instructions use ODBC and are
 compatible with more Office versions (including Home/Business Standard and 365 Home/Personal/Business).
 
-See the [compatibility page](https://support.microsoft.com/en-us/office/where-is-get-transform-power-query-e9332067-8e49-46fc-97ff-f2e1bfa0cb16?ui=en-us&rs=en-us&ad=us) for more details.
+Note that these instructions are **Windows only**. Excel 2016/2019 and Excel for Microsoft 365 on Mac don't support creating new Power Query queries.
 
-These instructions have only been tested on Windows.
+See the [compatibility page](https://support.microsoft.com/en-us/office/where-is-get-transform-power-query-e9332067-8e49-46fc-97ff-f2e1bfa0cb16?ui=en-us&rs=en-us&ad=us) for more details.
 
 ### Install psqlODBC