Update intersphinx mapping

Author: timsavage

docs/conf.py

@@ -271,4 +271,4 @@
 # texinfo_no_detailmenu = False
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {"http://docs.python.org/": None}
+intersphinx_mapping = {"python": ("https://docs.python.org/3", None)}