Fix rendering of README.
@@ -55,7 +55,7 @@ Using Keyring
=============
The basic usage of keyring is pretty simple: just call
-``keyring.set_password`` and ``keyring.get_password``:
+``keyring.set_password`` and ``keyring.get_password``::
>>> import keyring
>>> keyring.set_password("system", "username", "password")
