Merge pull request #11 from adafruit/stemma_i2c

Added commented out board.STEMMA_I2C with explanation

Author: evaherrada

examples/sht4x_simpletest.py

@@ -7,6 +7,7 @@
 import adafruit_sht4x
 
 i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
 sht = adafruit_sht4x.SHT4x(i2c)
 print("Found SHT4x with serial number", hex(sht.serial_number))