Update controls/collectionview/grouping/expand-collapse.md

Co-authored-by: Yordan <[email protected]>

Author: didiyordanova

controls/collectionview/grouping/expand-collapse.md

@@ -13,7 +13,7 @@ The CollectionView supports group expand and collapse operations either through
 
 This section provides an overview of the methods used to control the expand/collapse state of the CollectionView groups.
 
-By default, all groups are auto expanded when the CollectionView initially loads. You can load the CollectionView with all groupds collapsed by setting the `AutoExpandGroups` (`bool`) property to `false`. The default value of the `AutoExpandGroups` property is `true`.
+By default, all groups are auto-expanded when the CollectionView initially loads. You can load the CollectionView with all groups collapsed by setting the `AutoExpandGroups` (`bool`) property to `false`. The default value of the `AutoExpandGroups` property is `true`.
 
 ## Get the Grouped CollectionView Items