Added npm scripts (start, dev)

Author: ianvizarra

package.json

@@ -20,7 +20,8 @@
   ],
   "main": "app.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "node app.js",
+    "dev": "nodemon app.js"
   },
   "author": "Waren Gonzaga",
   "license": "MIT",