build index.html for all winners

Updated manifest as per recent file changes.

Updated winner `.winner.json` to reflect the manifest changes.

Added [bin/all_run.sh](bin/all_run.sh) tool to run a command over
all winning entries.

These tools had slight improvements in the help usage message:

* bin/gen-author.sh VERSION="1.3.1 2024-01-16"
* bin/gen-inventory.sh VERSION="1.0.1 2024-01-16"
* bin/pandoc_wrapper.sh VERSION="1.3.1 2024-01-16"
* bin/subst.default.sh VERSION="1.1.1 2024-01-16"
* bin/subst.winner-index.sh VERSION="1.1.1 2024-01-16"

The `bin/readme2index.sh` tool was improved so that
if the `index.html` file exists and the tool forms
the exact same content, then the file `index.html`
file is NOT touched.

* bin/readme2index.sh VERSION="1.1 2024-01-16"

We used the following command to generate `index.html` files
for all winning entries:

```sh
bin/all_run.sh -v 3 bin/readme2index.sh
```

NOTE: We have not (yet) built HTML files above the winner directory
level (e.g., no year level nor top level HTML), nor have be built
non-index HTML files for winners.

NOTE: By default we are running `pandoc(1)` with:

```
--fail-if-warnings=true
```

This means that any problems with markdown to HTML
generates an error.  This is done to be sure that
the HTML conversion is clean.

We had to fix the following `README.md` files:

* `2000/rince/README.md`

The reference [^2] was never used.  We made a guess that [^2] applies
to the same spot as [^1].  Perhaps there is a better spot where
[^2] applies?

NOTE: For every reference, there MUST be some place where that
reference is used.

* 2012/vik/README.md

The string "$...$" is assumed to be a TeX encoded string.

NOTE: Every "$..$" needs to be backslashed as in "\$..\$".

* 2018/burton1/README.md

The reference [2] was duplicated.  We changed the
second [2] to [3].

NOTE: Every reference needs to have a unique number.

* 2020/carlini/README.md

The string "$...$" is assumed to be a TeX encoded string.

NOTE: Every "$..$" needs to be backslashed as in "\$..\$".

We also found 2 errors in the `author/author_handle.json` file set:

* author/Anonymous_2001.json

The `author/Anonymous_2001.json` file was missing.

* author/Jari_Arkko.json

The winner ID for `1989_jar.1` had a typo.

2020/ferguson1/index.html

@@ -10,7 +10,7 @@
 <!-- -->
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
-<!-- This file was formed by the tool: bin/readme2index.sh version: 1.0 2024-01-14 -->
+<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->
 
@@ -111,8 +111,7 @@
 <!-- END: this line ends content from: inc/before-content.default.html -->
 <!-- START: this line starts content generated by: bin/gen-author.sh -->
 
-<p><a name="author"><strong>Author:</strong></a></p>
-<p>Name: <a
+<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
 href="/temp-test-ioccc/winners.html#Cody_Boone_Ferguson">Cody Boone
 Ferguson</a><br> Location: <a
 href="/temp-test-ioccc/location.html#US">US</a></p>
@@ -182,7 +181,7 @@ in this game is a misnomer; see notes below.</p></li>
 whether you can go through the Snake or not. Default is 0 (cannot - die
 if you try).</p></li>
 </ul>
-<h3 id="try">Try:</h3>
+<h2 id="try">Try:</h2>
 <div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> test</span>
 <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
 <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="va">WAIT</span><span class="op">=</span>75 <span class="va">WALLS</span><span class="op">=</span>1 <span class="va">CANNIBAL</span><span class="op">=</span>1 <span class="ex">./prog</span></span>