Added commented out board.STEMMA_I2C with explanation

Author: evaherrada

examples/lc709203f_simpletest.py

@@ -9,7 +9,9 @@
 print("LC709203F simple test")
 print("Make sure LiPoly battery is plugged into the board!")
 
-sensor = LC709203F(board.I2C())
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+sensor = LC709203F(i2c)
 
 print("IC version:", hex(sensor.ic_version))
 while True:

examples/lc709203f_thermistortest.py

@@ -9,7 +9,9 @@
 print("LC709203F thermistor test")
 print("Make sure a thermistor is connected to the board!")
 
-sensor = LC709203F(board.I2C())
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+sensor = LC709203F(i2c)
 
 # check your NTC thermistor datasheet for the appropriate B-Constant
 sensor.thermistor_bconstant = 3950