Link to CPython docs for time module

shared-bindings/time/__init__.c

@@ -40,7 +40,11 @@
 //|
 //| The `time` module is a strict subset of the CPython `cpython:time` module. So, code
 //| using `time` written in CircuitPython will work in CPython but not necessarily the other
-//| way around."""
+//| way around.
+//|
+//| For more information about the `time` module, see the CPython documentation:
+//| https://docs.python.org/3/library/time.html
+//| """
 //|
 //| def monotonic() -> float:
 //|     """Returns an always increasing value of time with an unknown reference