Merge pull request #1912 from lucafrance/patch-1

Update return type of Excel.Worksheet.PivotTables.md

Author: lindalu-MSFT

api/Excel.Worksheet.PivotTables.md

@@ -31,7 +31,7 @@ _expression_ A variable that represents a **[Worksheet](Excel.Worksheet.md)** ob
 
 ## Return value
 
-**Object**
+**[PivotTable](Excel.PivotTable.md)**
 
 
 ## Example