Remove unnecessary texts

Checked all the versioned docs from 1.x to 7.x all the are the same except for this 6.x version.

Author: jamesfm-dev

versioned_docs/version-6.x/hello-react-navigation.md

@@ -63,7 +63,7 @@ export default App;
 
 If you run this code, you will see a screen with an empty navigation bar and a grey content area containing your `HomeScreen` component (shown above). The styles you see for the navigation bar and the content area are the default configuration for a stack navigator, we'll learn how to configure those later.
 
-> The casing of the route name doesn't matter -- you can use lowercase `home` or capitalized `Home`, it's up to you. We prefer capitalizing our route names.(native-stack-navigator.md).
+> The casing of the route name doesn't matter -- you can use lowercase `home` or capitalized `Home`, it's up to you. We prefer capitalizing our route names.
 
 ### Configuring the navigator