add intersphinx

Author: willingc

docs/conf.py

@@ -13,6 +13,7 @@
 # A list of strings that are module names of Sphinx extensions
 extensions = [
     "sphinx_copybutton",
+    "sphinx.ext.intersphinx",
     "myst_parser",
 ]
 
@@ -29,6 +30,13 @@
 # Minimum Sphinx version as a string
 needs_sphinx = "4.0"
 
+# Intersphinx configuration
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/3/', None),
+    'devguide': ('https://devguide.python.org/', None),
+    'pep': ('https://peps.python.org/', None),
+}
+intersphinx_disabled_reftypes = []
 
 # Options for HTML output
 # =======================