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.

1993/ejb/.entry.json

@@ -59,7 +59,7 @@
 	},
 	{
 	    "file_path" : "1993_ejb.tar.bz2",
-	    "inventory_order" : 100000,
+	    "inventory_order" : 1415926535,
 	    "OK_to_edit" : false,
 	    "display_as" : "tbz2",
 	    "display_via_github" : false,

1993/ejb/hanoi.html

@@ -83,6 +83,7 @@
     <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>

1993/ejb/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>
@@ -141,13 +142,13 @@ Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em></l
 <!-- 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 all</code></pre>
+<pre><code>    make all</code></pre>
 <h2 id="to-use">To use:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    ./ejb level</code></pre>
+<pre><code>    ./ejb level</code></pre>
 <p>where:</p>
-<pre class="&lt;!---sh--&gt;"><code>    level   a value from -128 to 127</code></pre>
+<pre><code>    level   a value from -128 to 127</code></pre>
 <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>A negative argument plays the patience puzzle. An argument
 greater than 0 plays the Tower of Hanoi puzzle. In either case
@@ -160,11 +161,11 @@ the argument 127 to this program and want to see it finish!</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <h3 id="what-this-program-does">What this program does</h3>
 <h4 id="output-solution-to-towers-of-hanoi-for-five-rings">Output solution to Towers of Hanoi for five rings:</h4>
-<pre class="&lt;!---sh--&gt;"><code>    ./ejb 5</code></pre>
+<pre><code>    ./ejb 5</code></pre>
 <p>The format of the output for the Towers of Hanoi case is simply a
 text description of how to solve the puzzle.</p>
 <h4 id="output-solution-to-the-patience-puzzle-for-six-rings">Output solution to the Patience puzzle for six rings:</h4>
-<pre class="&lt;!---sh--&gt;"><code>    ./ejb -6</code></pre>
+<pre><code>    ./ejb -6</code></pre>
 <p>For the patience puzzle, the output is a sequence binary codes representing
 successive states of the puzzle. The rightmost digit represents the first ring.
 A <code>1</code> means the ring is on the <code>U</code>; a <code>0</code> means it is off the <code>U</code>. The program
@@ -224,10 +225,10 @@ compiler since it uses <code>signed char</code> and ANSI-style function declarat
 <li><a href="hanoi.html">hanoi.html</a> - about the Towers of Hanoi puzzle</li>
 <li><a href="patience.html">patience.html</a> - about the Patience puzzle</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1993/ejb/try.sh">try.sh</a> - how to run</li>
-<li><a href="1993_ejb.tar.bz2">1993_ejb.tar.bz2</a> - download entry tarball</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
+<li><a href="1993_ejb.tar.bz2">1993_ejb.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/1993/ejb/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/1993/ejb/.entry.json">.entry.json</a> - description of entry in JSON</li>

1993/ejb/patience.html

@@ -83,6 +83,7 @@
     <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>