The idea is to link your domain name to your scheduler's direct web address.
On our site, log in then go to "my settings" > "links". Once there copy the web address for your scheduler (right hand side in green).
In the domain name control panel (which is where you went to register it... with a separate login process), locate the web forwarding or URL redirection page (or whatever they might have called the feature). Then paste the web address you copied previously, wherever it asks for the URL / target URL / Web address (or similar term).
Then whenever people type www.yourdomain.com they should be sent straight to your scheduler.