Updating Readme.md

Author: ronak301

README.md

@@ -24,7 +24,7 @@ import SubmitButton from 'react-native-submit-button';
 class SubmitButtonExample extends Component {
   render() {
     return (
-      <View>
+      <View style={{flex:1}}>
         <SubmitButton />
       </View>
     );