added build step

Author: alejandrofdiaz

package.json

@@ -9,6 +9,7 @@
     "package-build": "./bin/runner.js"
   },
   "scripts": {
+    "build": "echo 'No build script required.'",
     "test": "npm run lint:check && npm run format:check",
     "lint": "eslint . --fix",
     "lint:check": "eslint .",