docs(aio): add examples to test cookbook doc

docs/content/examples/webpack/e2e-spec.ts

@@ -0,0 +1,21 @@
+'use strict'; // necessary for es6 output in node 
+
+import { browser, element, by } from 'protractor';
+
+describe('QuickStart E2E Tests', function () {
+
+  let expectedMsg = 'Hello from Angular App with Webpack';
+
+  beforeEach(function () {
+    browser.get('');
+  });
+
+  it(`should display: ${expectedMsg}`, function () {
+    expect(element(by.css('h1')).getText()).toEqual(expectedMsg);
+  });
+
+  it('should display an image', function () {
+    expect(element(by.css('img')).isPresent()).toBe(true);
+  });
+
+});