update some docs

diff --git a/Toolkit/Contacts/ContactUs.php b/Toolkit/Contacts/ContactUs.php
index 7937ec7..f07a726 100755 (executable)
--- a/Toolkit/Contacts/ContactUs.php
+++ b/Toolkit/Contacts/ContactUs.php
@@ -905,7 +905,12 @@ class Toolkit_Contacts_ContactUs
     }
 
     /**
-     * Handles how to process the form when submitted
+     * Handles how to process the form when submitted.
+     *
+     * If you override this method in your extended class you need
+     * to call this method first
+     * parent::processData($values);
+     * then do your processing.
      *
      * @param array $values Form submitted values
      *