Redboard IoT esp32 micropython development board pinout diagram

I purchased this board, can someone tell me where to find the correspondance and index of the pins on this board. I am trying to find GPIO5 and GPIO 23. I cannot find anything stenciled on the board.. Is there a document that I am missing, Where can I find it.

thanks

Look on the back of the board. The numbers are the GPIO pin numbers.

Thank you, this wasn’t clear to me.