Merge pull request #2427 from HO-COOH/patch-1

Update secondarytile.md

Author: jwmsft

windows.ui.startscreen/secondarytile.md

@@ -79,7 +79,7 @@ The following example demonstrates how to use the [FindAllForPackageAsync](secon
 
 ```csharp
 // Get all secondary tiles
-var tiles = await SecondaryTile.FindAllAsync();
+var tiles = await SecondaryTile.FindAllForPackageAsync();
 ```
 
 The following example demonstrates how to use the [TileUpdateManager.createTileUpdaterForSecondaryTile](../windows.ui.notifications/tileupdatemanager_createtileupdaterforsecondarytile_445640521.md) method to send a notification to a secondary tile with an ID of "SecondaryTile.Dynamic". Note that the example provides both a wide and square version of the notification because the user has control over which form of the tile is showing.
@@ -116,4 +116,4 @@ BadgeUpdateManager.CreateBadgeUpdaterForSecondaryTile(MainPage.dynamicTileId).Up
 
 ## -see-also
 
-[Secondary tiles guidance](/windows/uwp/design/shell/tiles-and-notifications/secondary-tiles), [Secondary tiles sample (Windows 10)](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/SecondaryTiles), [Mixed Reality Model sample](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/MixedRealityModel)
+[Secondary tiles guidance](/windows/uwp/design/shell/tiles-and-notifications/secondary-tiles), [Secondary tiles sample (Windows 10)](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/SecondaryTiles), [Mixed Reality Model sample](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/MixedRealityModel)