DOC: Update link to intersphinx mapping
@@ -340,5 +340,5 @@ texinfo_documents = [
# Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'https://docs.python.org/': None,
+intersphinx_mapping = {'https://docs.python.org/3/': None,
'http://rpaths.remram.fr/en/latest/': None}
