Where can I download the schematic for the W2 board?

hello, I am trying to develop using the W2 board. Is the circuit diagram for the W2 board available? If so, where can I download it?

I think what you need is at https://drive.google.com/drive/folders/0B4PAo2nW2KfnflVqbjJGTFlFTTd1b1o1OUxDNk5ackVDM0RNUjBpZ0FQU19SbDk1MngzZWM

Thank you for answer. I did not find a schematic for the W2 board. Is the schematic for the W2 board not yet released?