enable modckdocsk for builtin modules

Author: FoamyGuy

docs/conf.py

@@ -21,11 +21,11 @@
     "sphinx.ext.todo",
 ]
 
-# TODO: Please Read!
+
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
-# autodoc_mock_imports = ["digitalio", "busio"]
+autodoc_mock_imports = ["busio"]
 
 
 intersphinx_mapping = {