Merge pull request #17 from adafruit/stemma_i2c

Added commented out board.STEMMA_I2C with explanation

Author: evaherrada

examples/ssd1327_gamma.py

@@ -9,7 +9,8 @@
 displayio.release_displays()
 
 # Use for I2C
-i2c = 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
 display_bus = displayio.I2CDisplay(i2c, device_address=0x3D)
 
 # Use for SPI

examples/ssd1327_simpletest.py

@@ -10,7 +10,8 @@
 displayio.release_displays()
 
 # Use for I2C
-i2c = 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
 display_bus = displayio.I2CDisplay(i2c, device_address=0x3D)
 
 # Use for SPI