changed some-site.com to example.com in example code per http://www.rfc-editor.org/rfc/rfc2606.txt
diff --git a/user_guide/helpers/form_helper.html b/user_guide/helpers/form_helper.html
index d9eeb21..2613358 100644
--- a/user_guide/helpers/form_helper.html
+++ b/user_guide/helpers/form_helper.html
@@ -138,16 +138,16 @@
 

 <code>$data = array(<br />

 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'name'&nbsp;&nbsp;=> 'John Doe',<br />

-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'email' => 'john@some-site.com',<br />

-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'url'&nbsp;&nbsp;&nbsp;=> 'http://www.some-site.com'<br />

+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'email' => 'john@example.com',<br />

+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'url'&nbsp;&nbsp;&nbsp;=> 'http://www.example.com'<br />

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

 <br />

 echo form_hidden($data);<br />

 <br />

 // Would produce:<br /><br />

 &lt;input type="hidden" name="name" value="John Doe" /><br />

-&lt;input type="hidden" name="email" value="john@some-site.com" /><br />

-&lt;input type="hidden" name="url" value="http://www.some-site.com" /></code>

+&lt;input type="hidden" name="email" value="john@example.com" /><br />

+&lt;input type="hidden" name="url" value="http://www.example.com" /></code>