message: Fix possibly confusing typo
  I have always struggled getting mocks to work properly and this possible typo has always contributed to the problem. I say "possible" because I still am not super comfortable with what `jest.mock` actually does.
diff: @@ -138,7 +138,7 @@ module.exports = function() {
  };
  // test.js
  -jest.mock('./foo'); // this happens automatically with automocking
  +jest.mock('../foo'); // this happens automatically with automocking
  const foo = require('../foo');
  // foo is a mock function
  