Thank you for reaching out to us. Your URLs are correct, now to make the links jump to the sections, simply assign the IDs
stpete to sections. For example, inspect a section in Cornerstone:
Go to it's Customize tab:
Under Setup, assign an ID to your section:
To learn more about one page navigation, please see https://theme.co/apex/forum/t/features-how-to-setup-one-page-navigation/96
Hope this helps!