Fix syntax error in documentation example of SAML config

Author: knaperek

README.rst

@@ -174,7 +174,6 @@ We will see a typical configuration for protecting a Django project::
                 'single_logout_service': [
                     ('http://localhost:8000/saml2/ls/',
                      saml2.BINDING_HTTP_REDIRECT),
-                    ],
                     ('http://localhost:8000/saml2/ls/post',
                      saml2.BINDING_HTTP_POST),
                     ],