diff --git a/README.rst b/README.rst
index 978dbd7..a414a68 100644
--- a/README.rst
+++ b/README.rst
@@ -59,13 +59,13 @@ To install in a virtual environment in your current project:
 Usage Example
 =============
 
-.. code-block:: python
+.. code-block:: python3
 
     import time
     import board
     import adafruit_pct2075
 
-    i2c = board.I2C()
+    i2c = board.I2C()  # uses board.SCL and board.SDA
     pct = adafruit_pct2075.PCT2075(i2c)
 
     while True:
diff --git a/adafruit_pct2075.py b/adafruit_pct2075.py
index ef72a6d..7169073 100644
--- a/adafruit_pct2075.py
+++ b/adafruit_pct2075.py
@@ -16,17 +16,20 @@
 
 **Hardware:**
 
-* Adafruit PCT2075 Temperature Sensor Breakout: https://www.adafruit.com/products/4369
+* `Adafruit PCT2075 Temperature Sensor Breakout
+  <https://www.adafruit.com/products/4369>`_ (Product ID: 4369)
 
 **Software and Dependencies:**
 
 * Adafruit CircuitPython firmware for the supported boards:
   https://circuitpython.org/downloads
 
+* Adafruit's Bus Device library:
+  https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
 
+* Adafruit's Register library:
+  https://github.com/adafruit/Adafruit_CircuitPython_Register
 
-* Adafruit's Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
-* Adafruit's Register library: https://github.com/adafruit/Adafruit_CircuitPython_Register
 """
 
 from adafruit_register.i2c_struct import ROUnaryStruct, UnaryStruct
diff --git a/examples/pct2075_high_temp_alert_example.py b/examples/pct2075_high_temp_alert_example.py
index 3f535c5..2ec4e88 100644
--- a/examples/pct2075_high_temp_alert_example.py
+++ b/examples/pct2075_high_temp_alert_example.py
@@ -5,7 +5,7 @@
 import board
 import adafruit_pct2075
 
-i2c = board.I2C()
+i2c = board.I2C()  # uses board.SCL and board.SDA
 pct = adafruit_pct2075.PCT2075(i2c)
 
 pct.high_temperature_threshold = 35.5
diff --git a/examples/pct2075_simpletest.py b/examples/pct2075_simpletest.py
index cd05e9d..99219f1 100755
--- a/examples/pct2075_simpletest.py
+++ b/examples/pct2075_simpletest.py
@@ -5,7 +5,7 @@
 import board
 import adafruit_pct2075
 
-i2c = board.I2C()
+i2c = board.I2C()  # uses board.SCL and board.SDA
 pct = adafruit_pct2075.PCT2075(i2c)
 
 while True: