Merge pull request #30 from tekktrik/doc/fix-note

Fix note block in docstring

Author: kattni

adafruit_ina219.py

@@ -229,7 +229,7 @@ def set_calibration_32V_2A(self):  # pylint: disable=invalid-name
         """Configures to INA219 to be able to measure up to 32V and 2A of current. Counter
         overflow occurs at 3.2A.
 
-        ..note :: These calculations assume a 0.1 shunt ohm resistor is present
+        .. note:: These calculations assume a 0.1 shunt ohm resistor is present
         """
         # By default we use a pretty huge range for the input voltage,
         # which probably isn't the most appropriate choice for system