Update qwiic_relay.py

Correct link for ReadtheDocs

Author: bboyho

qwiic_relay.py

@@ -45,7 +45,7 @@
 """
 qwiic_relay
 ===============
-Python module for the 1SparkFun Qwiic Single Relay <https://www.sparkfun.com/products/15093>`_, `SparkFun Qwiic Quad Relay <https://www.sparkfun.com/products/15102>`_, `SparkFun Qwiic Dual Solid State Relay <https://www.sparkfun.com/products/16810>`_, `SparkFun Qwiic Quad Solid State Relay <https://www.sparkfun.com/products/16796>`_
+Python module for the `SparkFun Qwiic Single Relay <https://www.sparkfun.com/products/15093>`_, `SparkFun Qwiic Quad Relay <https://www.sparkfun.com/products/15102>`_, `SparkFun Qwiic Dual Solid State Relay <https://www.sparkfun.com/products/16810>`_, `SparkFun Qwiic Quad Solid State Relay <https://www.sparkfun.com/products/16796>`_
 
 This package can be used in conjunction with the overall `SparkFun qwiic Python Package <https://github.com/sparkfun/Qwiic_Py>`_