updated docs on SSOFilter and ErrorRedirectFilter

README.md

@@ -644,7 +644,7 @@ The `SingleSignOutFilter` can affect character encoding. This becomes most obvio
 <filter>
    <filter-name>CAS Single Sign Out Filter</filter-name>
    <filter-class>org.jasig.cas.client.session.SingleSignOutFilter</filter-class>
-  <init-param>
+   <init-param>
       <param-name>casServerUrlPrefix</param-name>
       <param-value>https://cas.example.com/cas</param-value>
    </init-param>