Setup instructions:
 i) First Download Project from github
 ii) Open the terminal at that folder location
 iii) Run commond "npm install"
 iv) Then run commond "node app.js"
 v) Then open browser and search for the url localhost:3000

How to use:
 i). Present an Email input form to the user
 ii). User enters their email address and presses “Request OTP” button
 iii). App requests an OTP from backend service
 iv). App presents an OTP input form to the user
 v). Copy paste OTP from backend terminal and press “Verify OTP” button
 vi). App verified OTP from backend service
 vii). If OTP matches, show user their email address
 viii). If OTP doesn’t match:
  a). Alert the user about wrong attempt and ask them to retry
  b). Let the user “Request another OTP” which takes user back to Step i