Fixes after author test

Ravi Srinivasan

2019-07-03 2ca6c30d94f675a75a57e8dc6c820ef6ff5bc3c7

 books/tests/app_test.js

@@ -34,7 +34,7 @@
      .get('/authors')
      .end((err, res) => {
        expect(res).to.have.status(200);
        expect(res.text).to.include('James Joyce');
        expect(res.text).to.include('James_Joyce');
        done();
      });
  });