Update configuration page

tutorials/tut0.rst

@@ -162,7 +162,7 @@ PostgREST uses a configuration file to tell it how to connect to the database. C
 .. code-block:: ini
 
   db-uri = "postgres://authenticator:mysecretpassword@localhost:5433/postgres"
-  db-schema = "api"
+  db-schemas = "api"
   db-anon-role = "web_anon"
 
 The configuration file has other :ref:`options <configuration>`, but this is all we need. 

tutorials/tut1.rst

@@ -226,7 +226,7 @@ Next update :code:`tutorial.conf` and specify the new function:
 
   # add this line to tutorial.conf
 
-  pre-request = "auth.check_token"
+  db-pre-request = "auth.check_token"
 
 Restart PostgREST for the change to take effect. Next try making a request with our original token and then with the revoked one.