add codehilite note in README and a testproject settings module

README.md

@@ -175,6 +175,7 @@ For now, look in [wiki/conf/settings.py](https://github.com/benjaoming/django-wi
 ### Other tips
 
  1. **Account handling:** There are simple views that handle login, logout and signup. They are on by default. Make sure to set settings.LOGIN_URL to point to your login page as many wiki views may redirect to a login page.
+ 2. **Syntax highlighting:** Python-Markdown has a pre-shipped codehilite extension which works perfectly, so add something like `WIKI_MARKDOWN_KWARGS = {'extensions': ['footnotes', 'attr_list', 'headerid', 'extra', 'codehilite', ]}` to your settings. Currently, django-wiki shippes with a stylesheet that already has the syntax highlighting CSS rules built-in. Oh, and you need to ensure `pip install pygments` because Pygments is what the codehilite extension is using!
 
 Plugins
 ------------

testproject/testproject/settings/codehilite.py

+from testproject.settings import *
+from testproject.settings.local import *
+
+# Test codehilite with pygments
+
+WIKI_MARKDOWN_KWARGS = {'extensions': ['codehilite','footnotes', 'attr_list', 'headerid', 'extra', ]}
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