Clean - Remove useless scaffolded files + Fix index export

__tests__/greeter-spec.ts

@@ -1,6 +0,0 @@
-import { Greeter } from '../src/greeter';
-
-test('Should greet with message', () => {
-  const greeter = new Greeter('friend');
-  expect(greeter.greet()).toBe('Bonjour, friend!');
-});

__tests__/index-spec.ts

@@ -1,5 +1,5 @@
 import * as index from '../src/index';
 
-test('Should have Greeter available', () => {
-  expect(index.Greeter).toBeTruthy();
+test('Should have render available', () => {
+  expect(index.render).toBeTruthy();
 });