Use a python code block for syntax rendering

README.md

@@ -19,6 +19,7 @@ with and tested on Python 2.6 and 2.7.
 Next, add a ``LDAP`` instance to your code and at least the three
 required configuration options:
 
+```python
 from flask import Flask
 from flask.ext.simpleldap import LDAP
 
@@ -33,7 +34,7 @@ required configuration options:
 @ldap.login_required
 def ldap_protected():
     return 'Success!'
-
+```
 
 Check the [examples](examples/) folder for a more complex example using LDAP groups.