📝 Added sandbox (code sketchbook)

sandbox/docker_web_app/server.js

@@ -0,0 +1,15 @@
+'use strict'
+const express = require('express')
+
+// Constants
+const PORT = 8080
+
+// App
+const app = express()
+app.get('/', (req, res) => {
+    res.send('Hello World')
+})
+
+app.listen(PORT, () => {
+    console.log(`Running on port: ${PORT}`)
+})