Restore Sprint 3 work

Author: arunkumarakilan

Sprint-3/4-stretch/card-validator.js

@@ -1,11 +1,11 @@
 ## **PROJECT: Credit Card Validator**
 
 In this project you'll write a script that validates whether or not a credit card number is valid.
- You must have at least two different digits represented (all of the digits cannot be the same).
+
 Here are the rules for a valid number:
 
 - Number must be 16 digits, all of them must be numbers.
--
+- You must have at least two different digits represented (all of the digits cannot be the same).
 - The final digit must be even.
 - The sum of all the digits must be greater than 16.