message: redundant and confusing line
  expect.assertions relevant only for tests expected to fail.
  after locating this I also found a post about it in stackoverflow:
  So it seems to confuse many people.
diff: @@ -92,7 +92,6 @@ Alternatively, you can use `async` and `await` in your tests. To write an async
  ```js
  test('the data is peanut butter', async () => {
  - expect.assertions(1);
  const data = await fetchData();
  expect(data).toBe('peanut butter');
  });
  