add -RepeatHeader switch for Format-Table (#3443)

* add `-RepeatHeader` switch

* Update Format-Table.md

Author: SteveL-MSFT

reference/6/Microsoft.PowerShell.Utility/Format-Table.md

@@ -445,11 +445,7 @@ Accept wildcard characters: False
 ```
 
 ### CommonParameters
-
-This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
--InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose,
--WarningAction, and -WarningVariable. For more information, see
-[about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
 
 ## INPUTS