npm start for windows

[samagragupta]

As this "start": "NODE_ENV=production node index.js" does not work properly in windows.

Also stating about node version.

[boss-contributions-bot]

Thanks @samagragupta, for raising the issue! 🙌

One of our mentors will revert on this soon. ✅

Star ⭐ this project and tweet 🐦 about BOSS 2020.

[samagragupta]

@hereisnaman Created the PR: #310

[samagragupta]

@abhishek97 Please add bounty to this.