Add parcel as build-dep

package.json

@@ -9,5 +9,12 @@
     "@babel/preset-react": "^7.0.0",
     "react": "^16.7.0",
     "react-dom": "^16.7.0"
+  },
+  "devDependencies": {
+    "parcel-bundler": "^1.11.0"
+  },
+  "scripts": {
+    "dev": "parcel index.html",
+    "build": "parcel build index.html"
   }
 }