[ZF-11061] Docs

- Fix wrong class in requirements.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@23734 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/ref/requirements-php-extensions-table.xml

@@ -668,8 +668,8 @@
                 <entry>&requirements.hard;</entry>
                 <entry>
                     <ulink
-                        url="&zf.manual.link;/zend.service.recaptcha.html">
-                        <classname>Zend_Service_ReCaptcha</classname>
+                        url="&zf.manual.link;/zend.service.recaptcha.html#zend.service.recaptcha.mailhide">
+                        <classname>Zend_Service_ReCaptcha_MailHide</classname>
                     </ulink>
                 </entry>
             </row>