In the restaurant dashboard, see "Settings > Website > Domains > Custom Domain"
Enter your domain name and press save
Go to your domain management panel where you registered your domain
Access your DNS records and add the DNS records listed below
After adding the DNS records, wait 10 minutes for it to take effect
Then press the "Generate SSL Certificate" button under your custom domain settings.
If your DNS settings have taken effect, it will indicate the SSL certificate has generated successfully. Once generated, your site will be accessible on your custom domain name. If you are unable to generate the certificate, allow more time for your DNS settings to take effect.
www / order / anything
@ / blank
Setting this will ensure if someone types in your root domain, i.e. example.com, they will be redirected to www.example.com