Example of how to create a data portal in 5 minutes (#769)

* [example][m] - start of a simple-example

* Empty-Commit

* [simple-example][sm] - change from repos.json to datasets.json

* [example][m] - changed styling and added octokit

* [build][sm] - fix build

examples/simple-example/specs/index.spec.tsx

@@ -0,0 +1,11 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+
+import Index from '../pages/index';
+
+describe('Index', () => {
+  it('should render successfully', () => {
+    const { baseElement } = render(<Index />);
+    expect(baseElement).toBeTruthy();
+  });
+});