Fix a minor copy-paste-o that broke the stylesheets

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133678 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LanguageExtensions.html b/docs/LanguageExtensions.html
index 991c3b9..dc70c69 100644
--- a/docs/LanguageExtensions.html
+++ b/docs/LanguageExtensions.html
@@ -5,8 +5,8 @@
 <head>
   <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
   <title>Clang LanguageExtensions</title>
-  <link type="text/css" rel="stylesheet" href="menu.css">
-  <link type="text/css" rel="stylesheet" href="content.css">
+  <link type="text/css" rel="stylesheet" href="../menu.css">
+  <link type="text/css" rel="stylesheet" href="../content.css">
   <style type="text/css">
     td {
             vertical-align: top;