No explanation what to do with configuration file

It is not a big issue, however, it is a bit frustrating that I can not find in the "Installation" section what is the best way and how to implement configured enzyme instance in my project:

import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

Enzyme.configure({ adapter: new Adapter() });

If you can give an idea how to handle it it would be nice