They seem to be unclear. There is no LED and the circuit and schematic "seem" different. I know that technically they are the same, but I think it would be better for beginners if they matched better (GND came from same place). It would also be easier for beginners if the LED was in the diagrams.
Same problem with /Tutorial/ButtonStateChange
I'd be happy to redo the fritzing diagrams if you needed.
The schematic represents a logical diagram. The Fritzing picture represents a physical setup.
The schematic and picture seem to match, to me.
The LED in question is the on-board LED, so no external LED is used.