Add Start command

Author: DBarbosaDev

package.json

@@ -5,6 +5,7 @@
   "main": "index.js",
   "scripts": {
     "build": "npm install && npm --prefix ./frontend install ./frontend",
+    "start": "node index",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",