Unable to access wiring guide or BOM for Pi 3 project

After adding all the components to a Raspberry Pi 3, I am unable to access the project guide. Swapping in an Arduino Uno R3 with the same components makes the project guide accessible, but appears to change the wiring. Any help here is greatly appreciated. Searching the forum turned up that test code isn’t available for the Pi 3, however I found no mention of the wiring guide.