docs: use native-stack in group

Author: kacperkapusciak

versioned_docs/version-6.x/group.md

@@ -6,10 +6,10 @@ sidebar_label: Screen
 
 `Screen` components are used to configure various aspects of screens inside a navigator.
 
-A `Screen` is returned from a `createNavigatorX` function:
+A `Screen` is returned from a `createXNavigator` function:
 
 ```js
-const Stack = createStackNavigator(); // Stack contains Screen & Navigator properties
+const Stack = createNativeStackNavigator(); // Stack contains Screen & Navigator properties
 ```
 
 After creating the navigator, it can be used as children of the `Navigator` component: