This is an old revision of the document!
Note there are a few differences between the Pinout Diagram and the labels on the back of the shipping Oak.
PWM: Pins 0-9 are PWM. (Pin 10 is listed as PWN on original diagaram)
SPI: Pins 7, 8 and 9 are now MOSI, MISO and SCK No labeled function for Pin 6.