adding app.js example to resources

resources/app.js

@@ -0,0 +1,14 @@
+const http = require('http');
+
+const hostname = '127.0.0.1';
+const port = 8080;
+
+const server = http.createServer((req, res) => {
+  res.statusCode = 200;
+  res.setHeader('Content-Type', 'text/plain');
+  res.end('Hello World\n');
+});
+
+server.listen(port, hostname, () => {
+  console.log(`Started Application http://${hostname}:${port}/`);
+});