no HTML smartypants!

Fix #669

docs/conf.py

@@ -221,7 +221,7 @@ def nothing(*arg):
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-#html_use_smartypants = True
+html_use_smartypants = False
 
 # Custom sidebar templates, maps document names to template names.
 #html_sidebars = {}