Update documentation to support integration tests
Update documentation to support integration tests

The documentation describes using `import { module, test } from 'ember-qunit'`, but this won't work, as `ember-qunit` doesn't have a `module` function. The syntax has been updated to use plain `qunit` instead.
princeofdarkness76/ember-cli,princeofdarkness76/ember-cli,princeofdarkness76/ember-cli,princeofdarkness76/ember-cli