minor fixes

README.rst

@@ -21,8 +21,6 @@ Configuration
 
 How to run the AutoVPN web application will depend on the deployment
 method that you choose (mod_wsgi, FastCGI, standalone HTTP server...).
-Examples of a few different drivers can be found in the apps/
-directory.
 
 In all cases though, you'll need to create a configuration file and
 point the application at it (for example using the VPN_APP_CONFIG
@@ -72,14 +70,17 @@ VPN_CA_SUBJECT
 In this latter case, the autoca web application will be available
 under the /ca/ URL prefix.
 
-The VPN web application supports authentication (to control who has
-access to the certificate generation). To enable it, define the
-following variables:
+The VPN web application supports authentication.  To enable it, define
+the following variables:
 
 AUTH_ENABLE
   Set this to True to enable authentication
 
 AUTH_FUNCTION
   Set this to a function that should accept two arguments (username
-  and password) and return a True/Fals result.
+  and password) and return a True/False result.
+
+Authentication is not related in any way to the contents of the
+generated client certificate, it just controls access to the generation
+form itself.