Added documentation for mail_to function.
diff --git a/user_guide_src/source/helpers/url_helper.rst b/user_guide_src/source/helpers/url_helper.rst
index 82db6a5..3054540 100644
--- a/user_guide_src/source/helpers/url_helper.rst
+++ b/user_guide_src/source/helpers/url_helper.rst
@@ -207,7 +207,12 @@
echo mailto('me@my-site.com', 'Click Here to Contact Me');
As with the anchor() tab above, you can set attributes using the third
-parameter.
+parameter:
+
+::
+
+ $attributes = array('title' => 'Mail me');
+ echo mailto('me@my-site.com', 'Contact Me', $attributes);
safe_mailto()
=============