build several top level HTML files

We build several top level HTML files whose content
comes from top level markdown files:

- CODE_OF_CONDUCT.html
- README.html
- bugs.html
- contact.html
- faq.html
- thanks-for-help.html

Added new `bin/gen-top-md2html.sh` to perform the above.

Added `make gen_top_md2html` rule to top level Makefile.
Added `make gen_top_md2html` to `make quick_www` and `make www`.

Improved top level jump links for `authors.html`.
Updated `bin/gen-authors.sh` to improve the top level jump links.
Changed `bin/gen-authors.sh` version from "1.0.1 2024-02-23"
to "1.1 2024-02-25".

Changed typo of "TITIE" into "TITLE".

Fixed `bin/subst.entry-index.sh` as per the above typo.
Changed `bin/subst.entry-index.sh` version from "1.2.1 2024-02-23"
to "1.2.2 2024-02-25".

Updated the `inc/md2html.cfg` config file to perform the above.

Performed `make quick_www` which updated `2000/natori/index.html`.

authors.html

@@ -19,7 +19,7 @@
 <link rel="stylesheet" href="./ioccc.css">
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
-<title>The authors of winning IOCCC entries</title>
+<title>The International Obfuscated C Code Contest</title>
 <meta name="description" content="IOCCC Authors and their winning entries">
 <meta name="keywords" content="IOCCC, entry, entries, Winning entries by author">
 </head>
@@ -35,7 +35,7 @@
 <div class="header">
   <img src="./png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
   <h1>The International Obfuscated C Code Contest</h1>
-  <h2>IOCCC Authors and their winning entries</h2>
+  <h2>Authors of winning IOCCC entries</h2>
 </div>
 
 <!-- END: this line ends content from: inc/header.default.html -->
@@ -104,21 +104,20 @@
 
 <center>
 <p>
-[ <a href="#A">A</a>   <a href="#B">B</a>   <a href="#C">C</a>  
-<a href="#D">D</a>   <a href="#E">E</a>   <a href="#F">F</a>  
-<a href="#G">G</a>   <a href="#H">H</a>   <a href="#I">I</a>  
-<a href="#J">J</a>   <a href="#K">K</a>   <a href="#L">L</a>  
-<a href="#M">M</a>   <a href="#N">N</a>   <a href="#O">O</a>  
-<a href="#P">P</a>   <a href="#Q">Q</a>   <a href="#R">R</a>  
-<a href="#S">S</a>   <a href="#T">T</a>   <a href="#U">U</a>  
-<a href="#V">V</a>   <a href="#W">W</a>   <a href="#X">X</a>  
-<a href="#Y">Y</a>   <a href="#Z">Z</a>]
+Jump to authors starting with: [ <a href="#A">A</a>  
+<a href="#B">B</a>   <a href="#C">C</a>   <a href="#D">D</a>  
+<a href="#E">E</a>   <a href="#F">F</a>   <a href="#G">G</a>  
+<a href="#H">H</a>   <a href="#I">I</a>   <a href="#J">J</a>  
+<a href="#K">K</a>   <a href="#L">L</a>   <a href="#M">M</a>  
+<a href="#N">N</a>   <a href="#O">O</a>   <a href="#P">P</a>  
+<a href="#Q">Q</a>   <a href="#R">R</a>   <a href="#S">S</a>  
+<a href="#T">T</a>   <a href="#U">U</a>   <a href="#V">V</a>  
+<a href="#W">W</a>   <a href="#X">X</a>   <a href="#Y">Y</a>  
+<a href="#Z">Z</a>]
 </p>
 </center>
 <p>
 <hr>
-<h1 id="people-who-have-won-the-ioccc">People who have won the
-IOCCC</h1>
 <!-- A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A -->
 <h2 id="a-is-for-atoi"><a name="A"></a>A is for atoi</h2>
 <!-- A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A -->