add rules, guidelines, fix HTML code, move compressed tarball in inventory

By changing the _inventory_order_ of the compressed tarball from
**100000** to **1415926535**, the compressed tarball will land at
the top of the secondary file list and remain still easy to find.

Updated the `manifest.numbers` spreadsheet and rebuilt
the `.entry.json` files.

Added `next/` directory to hold the next IOCCC rules and guidelines.
Added `next/README.md` that `bin/gen-top-html.sh` uses to form
the `next/index.html` file.

Added _Rules and Guidelines_ link to the sidenav bar to link to the
`next/index.html` file.

Added _IOCCC Rules_ as `next/rules.md` that `bin/gen-top-html.sh`
uses to form the `next/rules.html` file.

Added _IOCCC Guidelines_ as `next/guidelines.md` that `bin/gen-top-html.sh`
uses to form the `next/guidelines.html` file.

Changed `bin/gen-top-html.sh` VERSION from "1.2.4 2024-04-13"
to "1.3 2024-04-14".

Prevent `pandoc(1)` from interpreting the commented out language
of a markdown code block as a code class.  So a markdown such as:

````
``` <!---sh-->
...
```
````

that produced HTML of the form:

```html
<pre class="&lt;!---sh--&gt;"><code>...</code></pre>
```

will now produce HTML of the form:

```html
<pre><code>...</code></pre>
```

NOTE: Before when the language of a markdown code block
was not commented, the HTML produced by `pandoc(1)` was
oddly indented with extra whitespace on the first line
of the code block.  While commenting out the language
of the code block removed some of the odd intending,
it left a weird class in the HTML pre block that
surrounded the HTML code block.  This hack prevents
`pandoc(1)` from assigning a class to the HTML pre block.

Changed `in/md2html.sh` VERSION from "1.2.1 2024-04-13"
to "1.3 2024-04-14".

Added `make gen_sitemap` to end of both `make www` and `make
quick_www` in top level Makefile.

Ram `make www` to test under macOS and to perform the above.

**IMPORTANT NOTE**: The current `next/rules.md` and `next/guidelines.md`
are simply the 2020 IOCCC Rules and Guidelines converted into
markdown form.  There are **NOT** the Rules and Guidelines that
will be used the IOCCC MOCK, nor the next IOCCC.

TODO: Improve the `bin/gen-status.sh` tool to modify the top of the
      `next/rules.md` and `next/guidelines.md` files to keep them
      in sync with the _contest_status_ as found in `status.json`.

TODO: Improve the look and feel of the `next/rules.md` and
      `next/guidelines.md` markdown files.

2011/toledo/.entry.json

@@ -67,7 +67,7 @@
 	},
 	{
 	    "file_path" : "2011_toledo.tar.bz2",
-	    "inventory_order" : 100000,
+	    "inventory_order" : 1415926535,
 	    "OK_to_edit" : false,
 	    "display_as" : "tbz2",
 	    "display_via_github" : false,

2011/toledo/index.html

@@ -88,6 +88,7 @@
     <div class="sidenav">
       <a href="../../news.html">IOCCC News</a>
       <a href="../../status.html">Contest status</a>
+      <a href="../../next/index.html">Rules and Guidelines</a>
       <a href="../../faq.html#submit">How to enter the IOCCC</a>
       <a href="../../faq.html">FAQ</a>
     </div>
@@ -142,12 +143,12 @@ Location: <a href="../../location.html#MX">MX</a> - <em>United Mexican States</e
 
 <h2 id="to-build">To build:</h2>
 <p>If you have X11 installed:</p>
-<pre class="&lt;!---sh--&gt;"><code>    make</code></pre>
+<pre><code>    make</code></pre>
 <p>There are two alternate versions, <a href="toledo.alt.c">one that lets you reconfigure the
 controls and size</a> and <a href="toledo.alt2.c">another that should work for
 Windows</a>. See <a href="#alternate-code">Alternate code</a> below.</p>
 <h2 id="to-use">To use:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    ./toledo</code></pre>
+<pre><code>    ./toledo</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
 <p>The first alt version, <a href="toledo.alt.c">toledo.alt.c</a>, allows you to reconfigure
 the controls and the dimensions more easily.</p>
@@ -168,7 +169,7 @@ have the right names you can define the macros <code>FIRE</code>, <code>FORWARD<
     HEIGHT= 288</code></pre>
 <p>but you can change them about however you like, even with other keys. For
 instance to swap <code>LEFT</code> and <code>RIGHT</code>:</p>
-<pre class="&lt;!---sh--&gt;"><code>    make clobber LEFT=XK_Right:XK_d RIGHT=XK_Left:XK_a alt</code></pre>
+<pre><code>    make clobber LEFT=XK_Right:XK_d RIGHT=XK_Left:XK_a alt</code></pre>
 <p>but you can specify something completely else and you can pick and choose which
 controls you wish to redefine. You might also wish to change the dimensions of
 the game, <code>WIDTH</code> and <code>HEIGHT</code> which have an arbitrarily selected lower limit as
@@ -184,7 +185,7 @@ the source early on, right before the code gets hard to follow, or using the
 <a href="#alternate-code">alternate version</a>.</p>
 <p>Like Oscar’s previous winning X11 program for the 19th IOCCC, if
 you remove both the X11 include files and replace them with</p>
-<pre class="&lt;!---c--&gt;"><code>    #include &quot;layer.c&quot;</code></pre>
+<pre><code>    #include &quot;layer.c&quot;</code></pre>
 <p>you ought to be able to compile and run this program on Windows.
 NOTE: this is what <a href="toledo.alt2.c">toledo.alt2.c</a> is for.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
@@ -379,10 +380,10 @@ another program.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/toledo.orig.c">toledo.orig.c</a> - original source</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/keysym.h">keysym.h</a> - included header file</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/layer.c">layer.c</a> - translation layer to make 3D Tanks game</li>
-<li><a href="2011_toledo.tar.bz2">2011_toledo.tar.bz2</a> - download entry tarball</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
+<li><a href="2011_toledo.tar.bz2">2011_toledo.tar.bz2</a> - download entry tarball</li>
 <li><a href="index.html">index.html</a> - this web page</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/README.md">README.md</a> - markdown source for this web page</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/.entry.json">.entry.json</a> - description of entry in JSON</li>