diff --git a/doc/html/index.html b/doc/html/index.html
index fb6a071..3f35122 100644
--- a/doc/html/index.html
+++ b/doc/html/index.html
@@ -1,8 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
 <!--
-  $Id: index.html,v 1.6 2013/05/17 23:30:29 tom Exp $
+  $Id: index.html,v 1.11 2022/11/26 17:39:53 tom Exp $
   ****************************************************************************
-  * Copyright (c) 1998-2010,2013 Free Software Foundation, Inc.              *
+  * Copyright 2019-2020,2022 Thomas E. Dickey                                *
+  * Copyright 2000-2013,2017 Free Software Foundation, Inc.                  *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
   * copy of this software and associated documentation files (the            *
@@ -29,23 +29,40 @@
   * authorization.                                                           *
   ****************************************************************************
 -->
-<HTML>
-<HEAD>
-<TITLE>Welcome to ncurses</TITLE>
-<link rev=made href="mailto:bug-ncurses@gnu.org">
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-</HEAD>
-<BODY>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
+<html>
+<head>
+  <meta name="generator" content=
+  "HTML Tidy for HTML5 for Linux version 5.6.0">
+  <title>Welcome to ncurses</title>
+  <link rel="author" href="mailto:bug-ncurses@gnu.org">
+  <meta http-equiv="Content-Type" content=
+  "text/html; charset=us-ascii">
+</head>
+<body>
+  <h1>Welcome to ncurses</h1>
 
-<H1>Welcome to ncurses</H1>
-From this index page you have access to these further documents
-<UL>
-<LI>The <a href="announce.html">Announcement</a> of the current version of ncurses.
-<LI>An <a href="ncurses-intro.html">Introduction</a> into (n)curses programming.
-<LI>A <a href="hackguide.html">hackers guide</a> to ncurses.
-<LI>A description of the <a href="Ada95.html">Ada95 binding</a>, by J&uuml;rgen Pfeifer.
-<li>A <a href="NCURSES-Programming-HOWTO.html">A short tutorial</a>, by Pradeep Padala.
-</UL><P>
-We also have HTML versions of all the ncurses <a href="man">manpages</a>.
-</BODY>
-</HTML>
+  <p>From this index page you have access to these further
+  documents</p>
+
+  <ul>
+    <li>The <a href="announce.html">Announcement</a> of the current
+    version of ncurses.</li>
+
+    <li>An <a href="ncurses-intro.html">Introduction</a> into
+    (n)curses programming.</li>
+
+    <li>A <a href="hackguide.html">hackers guide</a> to
+    ncurses.</li>
+
+    <li>A description of the <a href="Ada95.html">Ada95
+    binding</a>, by J&uuml;rgen Pfeifer.</li>
+
+    <li>A <a href="NCURSES-Programming-HOWTO.html">A short
+    tutorial</a>, by Pradeep Padala.</li>
+  </ul>
+
+  <p>We also have HTML versions of all the ncurses <a href=
+  "man">manpages</a>.</p>
+</body>
+</html>