fixed todos

Author: caternuson

docs/index.rst

@@ -23,14 +23,10 @@ Table of Contents
 .. toctree::
     :caption: Tutorials
 
-.. todo:: Add any Learn guide links here. If there are none, then simply delete this todo and leave
-    the toctree above for use later.
-
 .. toctree::
     :caption: Related Products
 
-.. todo:: Add any product links here. If there are none, then simply delete this todo and leave
-    the toctree above for use later.
+    TCA9548A I2C Multiplexer <https://www.adafruit.com/product/2717>
 
 .. toctree::
     :caption: Other Links