Fix markdown, html files and Makefile

In particular the lists were mangled; I made sure that the html files
have the IOCCC headers/footers by using rdiscount to another file and
then yanking/pasting the generated lists in the one file into the target
files.

I also removed terminals.markdown which was a mistake I made when I sent
a patch (so I assume) to the judges.

Makefile now refers to *.text instead of *.markdown and no longer refers
to judges file as that was only part of the preview repo for winners.

There might have been other changes I have made but everything *appears*
to be okay now.

2020/ferguson1/gameplay.html

@@ -30,35 +30,59 @@ have included much more than just the input keys and a few printouts of the
 game. For normal play you probably don’t even need this file at all unless it be
 for the input keys.</p>
 
-<p><a name="toc"></a>
-1.  <a href="#support">Testing terminal environment/capabilities</a>
-2.  <a href="#input">Input keys</a>
-3.  <a href="#gameplay">Gameplay</a>
-    *   <a href="#initial">The initial screen</a>
-    *   <a href="#playing">Playing the game</a>
-    *   <a href="#walls">Walls</a>
-    *   <a href="#cannibalism">Cannibalism</a>
-    *   <a href="#shedding">Stretching (shedding)</a>
-    *   <a href="#winning">Winning</a>
-    *   <a href="#quitting">Quitting</a>
-4.  <a href="#modes">Gameplay modes</a>
-    *   <a href="#warning"><strong>Photosensitive epilepsy/Stimulation overload trigger warnings</strong></a>
-    *   <a href="#drawing">Drawing / Practice mode</a>
-    *   <a href="#auto">Computer playing / Automatic mode (<strong>Photosensitive epilepsy/Stimulation overload trigger</strong>)</a>
-        *   <a href="#auto-variations">Variations</a>
-    *   <a href="#grow-shrink">Grow-Shrink (Positive/Negative Winning) mode</a>
-    *   <a href="#hypnotic">Hypnotic / Sleepy mode (<strong>Photosensitive epilepsy/Stimulation overload trigger</strong>)</a>
-    *   <a href="#stim">Stimulation / Calming mode</a>
-    *   <a href="#other-ideas">Other ideas</a>
-5.  <a href="#scripts">Scripts</a>
-    *   <a href="#colours">Colours selection</a>
-    *   <a href="#preset">Automate the above gameplay modes</a>
-6.  <a href="#variables">Game variables</a>
-    * <a href="#wait">WAIT         -   Snake speed</a>
-    * <a href="#evade">EVADE            -   Bug evasion frequency</a>
-    * <a href="#sizes">SIZE / MAXSIZE       -   Initial snake / max sizes</a>
-    * <a href="#growth">GROW / SHEDS     -   Growth / Shedding sizes</a>
-7.  <a href="#conclusions">Conclusion (and inspirational words for everyone)</a></p>
+<p><a name="toc"></a></p>
+
+<ol>
+<li><p><a href="#support">Testing terminal environment/capabilities</a></p></li>
+<li><p><a href="#input">Input keys</a></p></li>
+<li><p><a href="#gameplay">Gameplay</a></p>
+
+<ul>
+<li><p><a href="#initial">The initial screen</a></p></li>
+<li><p><a href="#playing">Playing the game</a></p></li>
+<li><p><a href="#walls">Walls</a></p></li>
+<li><p><a href="#cannibalism">Cannibalism</a></p></li>
+<li><p><a href="#shedding">Stretching (shedding)</a></p></li>
+<li><p><a href="#winning">Winning</a></p></li>
+<li><p><a href="#quitting">Quitting</a></p></li>
+</ul>
+</li>
+<li><p><a href="#modes">Gameplay modes</a></p>
+
+<ul>
+<li><p><a href="#warning"><strong>Photosensitive epilepsy/Stimulation overload trigger warnings</strong></a></p></li>
+<li><p><a href="#drawing">Drawing / Practice mode</a></p></li>
+<li><p><a href="#auto">Computer playing / Automatic mode (<strong>Photosensitive epilepsy/Stimulation overload trigger</strong>)</a></p>
+
+<ul>
+<li><a href="#auto-variations">Variations</a></li>
+</ul>
+</li>
+<li><p><a href="#grow-shrink">Grow-Shrink (Positive/Negative Winning) mode</a></p></li>
+<li><p><a href="#hypnotic">Hypnotic / Sleepy mode (<strong>Photosensitive epilepsy/Stimulation overload trigger</strong>)</a></p></li>
+<li><p><a href="#stim">Stimulation / Calming mode</a></p></li>
+<li><p><a href="#other-ideas">Other ideas</a></p></li>
+</ul>
+</li>
+<li><p><a href="#scripts">Scripts</a></p>
+
+<ul>
+<li><p><a href="#colours">Colours selection</a></p></li>
+<li><p><a href="#preset">Automate the above gameplay modes</a></p></li>
+</ul>
+</li>
+<li><p><a href="#variables">Game variables</a></p>
+
+<ul>
+<li><p><a href="#wait">WAIT         -   Snake speed</a></p></li>
+<li><p><a href="#evade">EVADE            -   Bug evasion frequency</a></p></li>
+<li><p><a href="#sizes">SIZE / MAXSIZE       -   Initial snake / max sizes</a></p></li>
+<li><p><a href="#growth">GROW / SHEDS     -   Growth / Shedding sizes</a></p></li>
+</ul>
+</li>
+<li><p><a href="#conclusions">Conclusion (and inspirational words for everyone)</a></p></li>
+</ol>
+
 
 <h1>1. <a name="support" href="#toc">Testing terminal environment/capabilities</a></h1>