Open Safari (yes it must be Safari) on your iPhone. Visit the website for which you want to create a shortcut (in this case: https://www.occursillo.org/).
Note: whatever website page from which you preform the next steps is the page that will show when you click the shortcut.
Tap the “Share” button on the bottom of the screen.
Select “Add to Home Screen” to create an icon for this page on your home screen.
Type a name for the icon and tap “Add.”
NOTE: You can move the icon to the desired location on your home screen by tapping and holding it until the phone vibrates. Slide the icon where you want it and lift your finger to place it.