Summary:
I was using Modal component and I didn't knew what was the default for animationType prop. After reading the code, I saw that it was `none`.
I did not tell that the "default" is `slide` if animated is set to `true`, because it is not a default but an implementation of `animated` prop effect and because of the deprecation of `animated`.
Thanks.
Closes https://github.com/facebook/react-native/pull/13196
Differential Revision: D4795765
Pulled By: hramos
fbshipit-source-id: 25d62ac7eeb20fc5557918c3d75709f44f5d4972