Fixed some stuff in documentation.
diff --git a/application/config/config.php b/application/config/config.php
index fd6a1ae..31ff202 100644
--- a/application/config/config.php
+++ b/application/config/config.php
@@ -362,9 +362,10 @@
| Master Time Reference
|--------------------------------------------------------------------------
|
-| You can set any PHP supported timezones to be the master timezone when
-| you call the now() function. 'local' string can be used to get the local
-| time.
+| Options are 'local' or any PHP supported timezone. This pref tells the
+| system whether to use your server's local time as the master 'now'
+| reference, or convert it to any PHP supported timezone. See the 'date
+| helper' page of the user guide for information regarding date handling.
|
*/
$config['time_reference'] = 'local';