Updated readme with added features

README.md

@@ -2,11 +2,8 @@
 This repository contains a MicroPython "driver" implementation for the MCP9808
 temperature sensor from Microchip.
 
-Currently only a reasonably small subset of the features the sensor is
-implemented.
-
 ## Implemented
-* Reading the temperature value in degree celsius. The `read()` method supports floating point values and the `read_int()` method does not use floating point arythmetic at all and does return a tuple of decimal and fraction parts of the temperature reading.
+* Reading the temperature value in degree celsius. The `get_temp()` method supports floating point values and the `get_temp_int()` method does not use floating point arythmetic at all and does return a tuple of decimal and fraction parts of the temperature reading.
 * Shutdown mode to save power. When not in shutdown mode the sensor
 does draw 200-400 uA. Data acquisition can only be stopped in the so called
 "shutdown mode". In this mode communication is still possible using I2C.
@@ -19,7 +16,11 @@ is set to maximum resolution.
     | T_RES_LOW | +-0.25 °C   |    65 ms | 15            |
     | T_RES_AVG | +-0.125 °C  |   130 ms |  7            |
     | T_RES_MAX | +-0.0625 °C |   250 ms |  4            |
+* Alert mode: boundaries are defined by using
+`set_alert_boundary_temp()`. `set_alert_mode(self, enable_alert, output_mode, polarity, selector)`
+allows to enable/disable alert functionality, set the desired output mode to
+comparator or interrupt, switch te polarity between active-low or active-high
+(pull-up resistor required!) as well as what boundaries should trigger an alert.
 
 ## Not yet implemented
-* Alert temperature boundaries, hysteresis and comparator mode
-* Interrupt mode
+* hysteresis