AmbujKrAK/rm-101-node-basics

1. Create an Express Server and Deploy it on port 8000.
2. Create following API's on the server.
   • GET / returns HTML file.
   • GET /users returns a JSON file
   • GET /users/:id, matches id from user.json file and returns an Object.
   • POST /users updates the user.json file and add new user to it.