feat(aio): copy example code from angular.io

aio/content/examples/cli-quickstart/ts/e2e/app.e2e-spec.ts

@@ -0,0 +1,14 @@
+import { MyAppPage } from './app.po';
+
+describe('my-app App', function() {
+  let page: MyAppPage;
+
+  beforeEach(() => {
+    page = new MyAppPage();
+  });
+
+  it('should display message saying app works', () => {
+    page.navigateTo();
+    expect(page.getParagraphText()).toEqual('app works!');
+  });
+});