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.

author/Anonymous_2001.json

@@ -0,0 +1,20 @@
+{
+    "no_comment" : "mandatory comment: because comments were removed from the original JSON spec",
+    "author_JSON_format_version" : "1.0 2023-06-10",
+    "author_handle" : "Anonymous_2001",
+    "full_name" : "Anonymous 2001",
+    "sort_word" : "anonymous",
+    "location_code" : "GB",
+    "location_name" : "Great Britain",
+    "email" : null,
+    "url" : null,
+    "alt_url" : null,
+    "deprecated_twitter_handle" : null,
+    "mastodon" : null,
+    "mastodon_url" : null,
+    "github" : null,
+    "affiliation" : null,
+    "winning_entry_set" : [
+	{ "winner_id" : "2001_anonymous" }
+    ]
+}

author/Jari_Arkko.json

@@ -15,7 +15,7 @@
     "github" : null,
     "affiliation" : null,
     "winning_entry_set" : [
-	{ "winner_id" : "1989_jar1" },
+	{ "winner_id" : "1989_jar.1" },
 	{ "winner_id" : "1989_jar.2" },
 	{ "winner_id" : "2000_jarijyrki" }
     ]