file attinyx16.py update text info please

[PaulskPt]

I am using an Adafruit Gamepad QT (ID 5743).
While diving into this Adafruit_Circuitpython_seesaw module I found that a remark in the file attinyx16.py,
lines 16-19 are not up-to-date. These lines contain currently the following text:

    This class is automatically used by `adafruit_seesaw.seesaw.Seesaw` when
    a ATtinyx16 Breakout (PID 5690, PID 5681) is detected.

    It is also a reference for the capabilities of each pin.

however the code in file seesaw.py, class seesaw init() contains (also) these lines:

        elif (pid in (_5690_PID, _5681_PID, _5743_PID)) or (
            self.chip_id
            in (_ATTINY816_HW_ID_CODE, _ATTINY806_HW_ID_CODE, _ATTINY1616_HW_ID_CODE)

so this code checks also for _5743_PID, which represents the Adafruit Gamepad QT board.

I suggest to change the lines 16-19 in file attinyx16.py into:

    This class is automatically used by `adafruit_seesaw.seesaw.Seesaw` when
    a ATtinyx16 Breakout (PID 5690, PID 5681, PID 5743) is detected.

    It is also a reference for the capabilities of each pin.