Fixed a typo and added the route for the config file.
diff --git a/user_guide_src/source/installation/upgrade_300.rst b/user_guide_src/source/installation/upgrade_300.rst
index b6f5208..5d6450e 100644
--- a/user_guide_src/source/installation/upgrade_300.rst
+++ b/user_guide_src/source/installation/upgrade_300.rst
@@ -32,8 +32,8 @@
Use of the `$autoload['core']` config array has been deprecated as of CodeIgniter 1.4.1 and is now removed.
Move any entries that you might have listed there to `$autoload['libraries']` instead.
-Step 4: Change your use of the Date heper's now() function
+Step 4: Change your use of the Date helper's now() function
==========================================================
Function now() has been modified. You can see the changes in :doc:`Date Helper <../helpers/date_helper>`
-You must replace $config['time_reference'] with $config['timezone'].
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+You must replace $config['time_reference'] with $config['timezone'] in your config.php file.
\ No newline at end of file