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.

2019/lynn/.entry.json

@@ -115,7 +115,7 @@
 	},
 	{
 	    "file_path" : "2019_lynn.tar.bz2",
-	    "inventory_order" : 100000,
+	    "inventory_order" : 1415926535,
 	    "OK_to_edit" : false,
 	    "display_as" : "tbz2",
 	    "display_via_github" : false,

2019/lynn/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>
@@ -141,15 +142,15 @@ 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#2019_lynn">2019 lynn bugs</a>.</p>
 <h2 id="to-use">To use:</h2>
-<pre class="&lt;!---sh--&gt;"><code>    ./prog</code></pre>
+<pre><code>    ./prog</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 fully functional compiler. The example prints out the 30th <a href="https://en.wikipedia.org/wiki/Fibonacci_sequence">Fibonacci
 number</a>.</p>
@@ -171,21 +172,21 @@ trace of those scary <code>unsafeThisAndThat</code> functions. All functions mus
 </ul>
 <h3 id="building">Building:</h3>
 <p>Build the compiler:</p>
-<pre class="&lt;!---sh--&gt;"><code>    cc -o prog prog.c</code></pre>
+<pre><code>    cc -o prog prog.c</code></pre>
 <h3 id="demos">Demos:</h3>
 <h4 id="fibonacci-numbers">Fibonacci numbers:</h4>
 <p>Test the compiler on <a href="fib.hs">fib.hs</a>:</p>
-<pre class="&lt;!---sh--&gt;"><code>    (./prog &lt; fib.hs ; cat prog.c) &gt; fib.c</code></pre>
+<pre><code>    (./prog &lt; fib.hs ; cat prog.c) &gt; fib.c</code></pre>
 <p>Compiling the output produces a binary that prints the 30th Fibonacci number.</p>
 <p>The file <a href="ghcfib.hs">ghcfib.hs</a> includes <a href="fib.hs">fib.hs</a> with some glue code,
 and shows GHC also accepts our subset of Haskell:</p>
-<pre class="&lt;!---sh--&gt;"><code>    ghc ghcfib.hs</code></pre>
+<pre><code>    ghc ghcfib.hs</code></pre>
 <h4 id="self-hosting-compiler">Self-hosting compiler:</h4>
 <p>To avoid spoiling this entry by revealing the original Haskell source, we
 instead provide <a href="hint.hs">hint.hs</a>, the output of a certain stage of the
 compiler when run on itself. This intermediate output is hopefully difficult to
 understand, yet is accepted by our compiler:</p>
-<pre class="&lt;!---sh--&gt;"><code>    (./prog &lt; hint.hs ; cat prog.c) &gt; hint.c
+<pre><code>    (./prog &lt; hint.hs ; cat prog.c) &gt; hint.c
     make hint
     ./hint</code></pre>
 <p>The output program behaves like the compiler itself.</p>
@@ -200,19 +201,19 @@ it to work.</p>
 languages”</a>. We exercise it by
 showing the first entries of the length-ordered list of all strings consisting
 of the characters <code>a</code> and <code>b</code> that contain an even number of <code>a</code>s.</p>
-<pre class="&lt;!---sh--&gt;"><code>    (./prog &lt; lol.hs ; cat prog.c) &gt; lol.c
+<pre><code>    (./prog &lt; lol.hs ; cat prog.c) &gt; lol.c
     make lol
     ./lol</code></pre>
 <p>A GHC wrapper is provided:</p>
-<pre class="&lt;!---sh--&gt;"><code>    ghc ghclol.hs</code></pre>
+<pre><code>    ghc ghclol.hs</code></pre>
 <h3 id="strongly-connected-components">Strongly-connected components:</h3>
 <p>See <a href="scc.hs">scc.hs</a> (and its GHC wrapper <a href="ghcscc.hs">ghcscc.hs</a>) for an elegant
 way to print the strongly-connected components of a graph in reverse topological
 order.</p>
-<pre class="&lt;!---sh--&gt;"><code>    (./prog &lt; scc.hs ; cat prog.c) &gt; scc.c</code></pre>
+<pre><code>    (./prog &lt; scc.hs ; cat prog.c) &gt; scc.c</code></pre>
 <p>It expects the input to be in a similar format as a previous entry
 (2018 vokes). For example:</p>
-<pre class="&lt;!---sh--&gt;"><code>    make scc
+<pre><code>    make scc
     ./scc &lt; example-1.txt
     ./scc &lt; example-2.txt</code></pre>
 <p>The output should agree, though our program omits line numbers and does not
@@ -372,10 +373,10 @@ works</a>.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/lynn/lol.hs">lol.hs</a> - compiler macros</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/lynn/scc.hs">scc.hs</a> - compiler macros</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/lynn/hint.hs">hint.hs</a> - spoiler for compiler macros</li>
-<li><a href="2019_lynn.tar.bz2">2019_lynn.tar.bz2</a> - download entry tarball</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
+<li><a href="2019_lynn.tar.bz2">2019_lynn.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/2019/lynn/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/2019/lynn/.entry.json">.entry.json</a> - description of entry in JSON</li>