Add intersphinx target

Author: countsudoku

docs/source/conf.py

@@ -161,4 +161,7 @@
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'https://docs.python.org/': None}
+intersphinx_mapping = {
+        'python': ('https://docs.python.org/', None),
+        'requests': ('http://docs.python-requests.org/en/master/', None),
+}