update user guide for replacing 'br/' with 'br /'
diff --git a/user_guide/installation/upgrade_201.html b/user_guide/installation/upgrade_201.html
index 036ef7c..7ae29b8 100644
--- a/user_guide/installation/upgrade_201.html
+++ b/user_guide/installation/upgrade_201.html
@@ -83,7 +83,7 @@
<p>to use either a / or <kbd>base_url()</kbd>:</p>
-<code>echo form_open('/'); //<form action="http://example.com/index.php/" method="post" accept-charset="utf-8"><br/>
+<code>echo form_open('/'); //<form action="http://example.com/index.php/" method="post" accept-charset="utf-8"><br />
echo form_open(base_url()); //<form action="http://example.com/" method="post" accept-charset="utf-8"></code>
</div>
@@ -102,4 +102,4 @@
</div>
</body>
-</html>
\ No newline at end of file
+</html>