Merge pull request #17 from adafruit/stemma_i2c

Added commented out board.STEMMA_I2C with explanation

Author: evaherrada

examples/tlv493d_simpletest.py

@@ -6,6 +6,7 @@
 import adafruit_tlv493d
 
 i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
 tlv = adafruit_tlv493d.TLV493D(i2c)
 
 while True: