Here's a step-by-step guide to link an itinerary from your website: 1. Log in to your Tern account and navigate to the Library section, find the form you want to link. 2. Click the 'SEND' button in the upper right corner and copy the link. 3. Open your website editor, locate the button where you want to add the link, paste the copied Tern link into the link settings, and save the changes.