doc updates, corrections and clarifications.
diff --git a/user_guide/libraries/uri.html b/user_guide/libraries/uri.html
index 818115f..af5994c 100644
--- a/user_guide/libraries/uri.html
+++ b/user_guide/libraries/uri.html
@@ -194,7 +194,7 @@
<code>/news/local/345</code>
-<h2>$this->uri->ruri_string(<var>n</var>)</h2>
+<h2>$this->uri->ruri_string()</h2>
<p>This function is identical to the previous one, except that it returns the
re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p>