fix spaces and build docs

Author: jfurcean

adafruit_nunchuk.py

@@ -5,14 +5,22 @@
 """
 `adafruit_nunchuk`
 ================================================================================
+
 CircuitPython library for Nintendo Nunchuk controller
+
+
 * Author(s): Carter Nelson
+
 Implementation Notes
 --------------------
+
 **Hardware:**
+
 * `Wii Remote Nunchuk <https://en.wikipedia.org/wiki/Wii_Remote#Nunchuk>`_
 * `Wiichuck <https://www.adafruit.com/product/342>`_
+
 **Software and Dependencies:**
+
 * Adafruit CircuitPython firmware for the supported boards:
   https://github.com/adafruit/circuitpython/releases
 * Adafruit's Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
@@ -30,6 +38,7 @@
 class Nunchuk:
     """
     Class which provides interface to Nintendo Nunchuk controller.
+
     :param i2c: The `busio.I2C` object to use.
     :param address: The I2C address of the device. Default is 0x52.
     :type address: int, optional