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.

2005/mikeash/.entry.json

@@ -43,7 +43,7 @@
 	},
 	{
 	    "file_path" : "2005_mikeash.tar.bz2",
-	    "inventory_order" : 100000,
+	    "inventory_order" : 1415926535,
 	    "OK_to_edit" : false,
 	    "display_as" : "tbz2",
 	    "display_via_github" : false,

2005/mikeash/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>
@@ -141,17 +142,17 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 <!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
 
 <h2 id="to-build">To build:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    make</code></pre>
+<pre><code>    make</code></pre>
 <h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
 <p>The current status of this entry is:</p>
 <pre><code>    STATUS: INABIAF - please **DO NOT** fix</code></pre>
 <p>For more detailed information see <a href="../../bugs.html#2005_mikeash">2005 mikeash bugs</a>.</p>
 <h2 id="to-use">To use:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    ./mikeash</code></pre>
+<pre><code>    ./mikeash</code></pre>
 <p>NOTE: the author stated that they tested this under i386 machines but this works
 under 64-bit (x86_64, arm64) machines too.</p>
 <h2 id="try">Try:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    ./try.sh</code></pre>
+<pre><code>    ./try.sh</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>Having problems speaking code? Do you <a href="https://en.wikipedia.org/wiki/Lisp_(programming_language)">LISP</a>? Parenthetically
 speaking, this entry takes advantage of C99 features, while
@@ -175,12 +176,12 @@ constant string, due to different string escape semantics in C and Lisp, and
 some implicit integer-to-pointer conversions due to the implicitly-declared
 functions.</p>
 <p>Try:</p>
-<pre class="&lt;!---sh--&gt;"><code>    echo &#39;(format t &quot;~s&quot; (+ 2 2 ))&#39; | ./mikeash</code></pre>
+<pre><code>    echo &#39;(format t &quot;~s&quot; (+ 2 2 ))&#39; | ./mikeash</code></pre>
 <p>You should see <code>4"</code> echoed on your command prompt. The <code>"</code> after the 4 and
 the lack of a newline are due to the somewhat broken implementation of
 the format function. More sophisticated arithmetic expressions may be
 used:</p>
-<pre class="&lt;!---sh--&gt;"><code>    echo &#39;(format t &quot;~s&quot; (* (+ 2 2 ) (- 5 (/ 9 3 ))))&#39; | ./mikeash</code></pre>
+<pre><code>    echo &#39;(format t &quot;~s&quot; (* (+ 2 2 ) (- 5 (/ 9 3 ))))&#39; | ./mikeash</code></pre>
 <p>This evaluates the expression <code>(2+2) * (5 - 9/3)</code> giving the correct result,
 <code>8"</code> (with the same issue of no newline after the <code>"</code>). Note that due to the
 highly ad-hoc nature of the tokenizer, the spaces before the closing parentheses
@@ -219,7 +220,7 @@ nowhere near
 </ul>
 <p>Basically, the <a href="https://en.wikipedia.org/wiki/Lisp_(programming_language)">LISP</a> interpreter is good for some basic math operations, and
 for running itself. To do the latter, try this:</p>
-<pre class="&lt;!---sh--&gt;"><code>    ./mikeash &lt; mikeash.c &gt; mikeash2.c
+<pre><code>    ./mikeash &lt; mikeash.c &gt; mikeash2.c
     diff mikeash.c mikeash2.c</code></pre>
 <p>The program can also be run from an implementation of <a href="https://en.wikipedia.org/wiki/Common_Lisp">common
 lisp</a>. To do
@@ -269,10 +270,10 @@ C library.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2005/mikeash/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2005/mikeash/mikeash.orig.c">mikeash.orig.c</a> - original source</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2005/mikeash/try.sh">try.sh</a> - how to run</li>
-<li><a href="2005_mikeash.tar.bz2">2005_mikeash.tar.bz2</a> - download entry tarball</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
+<li><a href="2005_mikeash.tar.bz2">2005_mikeash.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/2005/mikeash/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/2005/mikeash/.entry.json">.entry.json</a> - description of entry in JSON</li>