message: Update example of code at README
diff: @@ -25,10 +25,10 @@ import { Page, View, Text } from 'react-figma';
  export const App = () => {
  return (
  - <Page name="New page">
  + <Page name="New page" isCurrent>
  <View>
  <View style={{ width: 200, height: 100, backgroundColor: '#dd55aa' }} />
  - <Text characters="text" style={{ color: '#ffffff' }} />
  + <Text style={{ color: '#ffffff' }}>text</Text>
  </View>
  </Page>
  );
  