If you want to add a Link to WhatsApp you can add a WhatsApp Icon to make it more visible in your website.
You can use these WhatsApp icons to make your link more visible.
Copy this URL > https://tochat.be/whatsapp-icon-white.png
Copy this URL > https://tochat.be/whatsapp-icon-green.jpg
You can create your own WhatsApp Button with a link to your WhatsApp number.