README and docstring update

Author: caternuson

README.rst

@@ -58,10 +58,8 @@ Usage Example
     # Finally you can optionally specify a custom I2C address of the HT16k33 like:
     #matrix = matrix.Matrix16x8(i2c, address=0x70)
 
-    # Clear the matrix.  Always call show after changing pixels to make the display
-    # update visible!
+    # Clear the matrix.
     matrix.fill(0)
-    matrix.show()
 
     # Set a pixel in the origin 0,0 position.
     matrix.pixel[0, 0] = 1
@@ -77,7 +75,6 @@ Usage Example
     # Set the blink rate
     matrix.blink_rate = 2
 
-    matrix.show()
 
 Contributing
 ============

adafruit_ht16k33/ht16k33.py

@@ -39,7 +39,13 @@
 
 
 class HT16K33:
-    """The base class for all displays. Contains common methods."""
+    """
+    The base class for all displays. Contains common methods.
+
+    :param int address: The I2C addess of the HT16K33.
+    :param bool auto_write: True if the display should immediately change when
+        set. If False, `show` must be called explicitly.
+    """
     def __init__(self, i2c, address=0x70, auto_write=True):
         self.i2c_device = i2c_device.I2CDevice(i2c, address)
         self._temp = bytearray(1)