Summary:
Not a big deal, I was just going through the tutorial trying to figure out which doc was the most boring, and improve it a bit. IMO now the example is slightly funnier, and it mentions onSubmitEditing which in practice is probably a more useful callback.
Closes https://github.com/facebook/react-native/pull/8447
Differential Revision: D3491938
Pulled By: JoelMarcey
fbshipit-source-id: 3bd0f5762dc4db4a85c9d5badb6c005f4b8c52f4