Typo Fix (#1305)

Fix in android specific use case

docs/android-specific-use-cases.md

 ### Screen animation
 When Shared Element Transition is used, a cross-fade transition is used between the entering and exiting screens. Make sure the root `View` has a background color in order for the cross-fade animation to be visible.
 
-To disable the corss-fade animation, set `animated: false` when pushing the second screen. Disabling this animation is useful if you'd like to animate the reset of the elements on screen your self.
+To disable the cross-fade animation, set `animated: false` when pushing the second screen. Disabling this animation is useful if you'd like to animate the reset of the elements on screen your self.
 
 ## Reloading from terminal
 You can easily reload your app from terminal using `adb shell am broadcast -a react.native.RELOAD`. This is particularly useful when debugging on device.