fixed a typo in url_helper example, added 1.6.2 to changelog
diff --git a/user_guide/helpers/url_helper.html b/user_guide/helpers/url_helper.html
index fe509d0..a96367e 100644
--- a/user_guide/helpers/url_helper.html
+++ b/user_guide/helpers/url_helper.html
@@ -152,7 +152,7 @@
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'screeny'&nbsp;&nbsp;&nbsp;&nbsp;=> '0'<br />

 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;);<br />

 <br />

-echo anchor_popup(news/local/123, 'Click Me!', $atts);</code>

+echo anchor_popup('news/local/123', 'Click Me!', $atts);</code>

 

 <p>Note: The above attributes are the function defaults so you only need to set the ones that are different from what you need.

 If you want the function to use all of its defaults simply pass an empty array in the third parameter:</p>