docs: conf.py: alphabetize imports

Author: jepler

conf.py

@@ -14,11 +14,12 @@
 # serve to show the default.
 
 import json
-import sys
 import os
+import subprocess
+import sys
+import urllib.parse
 
 import recommonmark
-import subprocess
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the