Added command for running production server

Author: Kameshwaran

docs/package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "start": "cross-env NODE_ENV=development UV_THREADPOOL_SIZE=100 node ./server",
     "build": "cross-env NODE_ENV=production UV_THREADPOOL_SIZE=100 webpack --config ./webpack.config.production --colors --profile --progress",
+    "prod" : "cross-env NODE_ENV=production UV_THREADPOOL_SIZE=100 node ./server",
     "deploy": "gh-pages -d build"
   },
   "dependencies": {