message: Update example file to match styling in README
diff: // Copyright 2004-present Facebook. All Rights Reserved.
  -test('adds 1 + 2 to equal 3', () => {
  const sum = require('./sum');
  +
  +test('adds 1 + 2 to equal 3', () => {
  expect(sum(1, 2)).toBe(3);
  });
  