How to chat on Whatsapp with your laptop

How to chat on whatsapp with you computer
Recently whatsapp have come up with an amazing features which with it you can chat on any computer with it. It's simple just a few step
•update your whatsapp to the latest version
•press the option key on your phone.
•you click the one that says whatsapp web
•a bar code will appear ,scan it with your computer and your can now chat with your computer.