HTML tweak to get the PCH internals documentation to display correctly

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72813 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/PCHInternals.html b/docs/PCHInternals.html
index 6e2313c..6ea1692 100644
--- a/docs/PCHInternals.html
+++ b/docs/PCHInternals.html
@@ -1,6 +1,13 @@
-<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
-<html> <head>
-<title>Precompiled Headers (PCH)</title>
+<html>
+<head>
+  <title>Precompiled Headers (PCH)</title>
+  <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;
+    }
+  </style>
 </head>
 
 <body>