improved indentation and whitespace for markdown code blocks

All code blocks in markdown have been intended by at least 4 spaces.

We add `--tab-stop=8` to all `pandoc(1)` executions in order to set
a better tab stop indentation, especially for tab intended code blocks.

Changed `bin/pandoc-wrapper.sh` VERSION from "1.5.3 2024-03-26"
to "1.6 2024-03-31".

Fixed `1991/brnstnd/sorta.README.md` so that the sorta code
is code blocks.

Removed unneeded paragraph group in copyright in `inc/footer.default.html`.

Fixed excess whitespace after list Author on entry `index.html` page.

Changed `bin/output-index-author.sh` VERSION from "1.5.2 2024-03-26"
to "1.6 2024-03-31".

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

TODO: Fix the problem of the initial line of code being extra intended.
TODO: Fix excess whitespace around code that is inline.

2015/endoh1/index.html

@@ -135,8 +135,7 @@
 Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em>
 <br><br></li>
 <li>Name: <a href="../../authors.html#Yusuke_Endoh">Yusuke Endoh</a><br>
-Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em>
-<br><br></li>
+Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em></li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -145,12 +144,12 @@ Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em>
 <!-- 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>
-<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
+<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">make</span></span></code></pre></div>
 <p>NOTE: this program requires the tool <code>tcpserver</code> to use. If you do not have this
 program see <a href="../../faq.html#tcpserver">FAQ 3.14 - How do I compile and install tcpserver for entries that
 require it</a>.</p>
 <h2 id="to-use">To use:</h2>
-<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">tcpserver</span> <span class="at">-v</span> 127.0.0.1 10333 ./prog ioccc.txt</span></code></pre></div>
+<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">tcpserver</span> <span class="at">-v</span> 127.0.0.1 10333 ./prog ioccc.txt</span></code></pre></div>
 <p>Then connect to http://localhost:10333 with your browser.</p>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p><a href="https://www.livescience.com/950-leopard-spots.html">How did the leopard get its
@@ -169,18 +168,18 @@ test</a>? This program is also based on
 his work.</p>
 <h3 id="whirlwind-tour">Whirlwind tour</h3>
 <p>Compile the program as follows:</p>
-<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-O3</span> <span class="at">-std</span><span class="op">=</span>c99 <span class="dt">\</span></span>
-<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>        <span class="at">-Wall</span> <span class="at">-Wextra</span> <span class="at">-pedantic</span> <span class="at">-o</span> prog prog.c <span class="dt">\</span></span>
-<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a>        <span class="at">-Delta_u</span><span class="op">=</span><span class="st">&quot;Du*laplacian(u)-u*v*v+F*(1-u)&quot;</span> <span class="dt">\</span></span>
-<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a>        <span class="at">-Delta_v</span><span class="op">=</span><span class="st">&quot;Dv*laplacian(v)+u*v*v-v*(F+K)&quot;</span> <span class="dt">\</span></span>
-<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a>        <span class="at">-DF</span><span class="op">=</span>0.040 <span class="at">-DK</span><span class="op">=</span>0.060 <span class="at">-DDu</span><span class="op">=</span>0.200 <span class="at">-DDv</span><span class="op">=</span>0.100 <span class="dt">\</span></span>
-<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a>        <span class="at">-DUV_BACKGROUND</span><span class="op">=</span>1,0 <span class="at">-DUV_DROP</span><span class="op">=</span>-0.5,0.5 <span class="dt">\</span></span>
-<span id="cb3-7"><a href="#cb3-7" aria-hidden="true" tabindex="-1"></a>        <span class="at">-DTIMESTEP</span><span class="op">=</span>1.0 <span class="at">-DSPEED</span><span class="op">=</span>2 <span class="at">-DRGB</span><span class="op">=</span>255:128:192</span></code></pre></div>
+<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>    <span class="fu">cc</span> <span class="at">-O3</span> <span class="at">-std</span><span class="op">=</span>c99 <span class="dt">\</span></span>
+<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>           <span class="at">-Wall</span> <span class="at">-Wextra</span> <span class="at">-pedantic</span> <span class="at">-o</span> prog prog.c <span class="dt">\</span></span>
+<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a>           <span class="at">-Delta_u</span><span class="op">=</span><span class="st">&quot;Du*laplacian(u)-u*v*v+F*(1-u)&quot;</span> <span class="dt">\</span></span>
+<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a>           <span class="at">-Delta_v</span><span class="op">=</span><span class="st">&quot;Dv*laplacian(v)+u*v*v-v*(F+K)&quot;</span> <span class="dt">\</span></span>
+<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a>           <span class="at">-DF</span><span class="op">=</span>0.040 <span class="at">-DK</span><span class="op">=</span>0.060 <span class="at">-DDu</span><span class="op">=</span>0.200 <span class="at">-DDv</span><span class="op">=</span>0.100 <span class="dt">\</span></span>
+<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a>           <span class="at">-DUV_BACKGROUND</span><span class="op">=</span>1,0 <span class="at">-DUV_DROP</span><span class="op">=</span>-0.5,0.5 <span class="dt">\</span></span>
+<span id="cb3-7"><a href="#cb3-7" aria-hidden="true" tabindex="-1"></a>           <span class="at">-DTIMESTEP</span><span class="op">=</span>1.0 <span class="at">-DSPEED</span><span class="op">=</span>2 <span class="at">-DRGB</span><span class="op">=</span>255:128:192</span></code></pre></div>
 <p>Then, run it with the <code>tcpserver</code> command in the
 <a href="http://cr.yp.to/ucspi-tcp.html">ucspi-tcp</a> package, which was created by
 <a href="../../authors.html#Daniel_J_Bernstein">Daniel J. Bernstein</a>’s
 <a href="../../1991/brnstnd/index.html">1991/brndstd</a> “Best of Show”.</p>
-<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">tcpserver</span> <span class="at">-v</span> 127.0.0.1 10333 ./prog ioccc.txt</span></code></pre></div>
+<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">tcpserver</span> <span class="at">-v</span> 127.0.0.1 10333 ./prog ioccc.txt</span></code></pre></div>
 <p>Finally, open <code>http://127.0.0.1:10333/</code> in a modern browser supporting HTML5.
 You can use the mouse cursor to place drops into the <a href="https://en.wikipedia.org/wiki/Petri_dish">Petri
 dish</a> interactively.</p>
@@ -192,8 +191,8 @@ models in which two chemical substances are transformed into each other (<em>loc
 chemical reactions</em>) and spread out (<em>diffusion</em>). Their interactions sometimes
 form non-trivial patterns, such as spots, spiral, dappling, and labyrinths.</p>
 <p>The systems are generally formulated as follows:</p>
-<pre><code>du/dt = F(u, v) + Du * laplacian(u)
-dv/dt = G(u, v) + Dv * laplacian(v)</code></pre>
+<pre><code>    du/dt = F(u, v) + Du * laplacian(u)
+    dv/dt = G(u, v) + Dv * laplacian(v)</code></pre>
 <p>The functions <code>F(u, v)</code> and <code>G(u, v)</code> represent reactions of each substance, and
 the parameters <code>Du</code> and <code>Dv</code> are diffusion coefficients. By changing the
 functions and parameters, you can see a wide range of behaviors.</p>
@@ -212,11 +211,11 @@ definition.</p>
 example, the following is <a href="http://groups.csail.mit.edu/mac/projects/amorphous/GrayScott/">the Gray-Scott
 model</a> in TeX
 notation.</p>
-<pre><code>\frac{\partial u}{\partial t} = D_u \Delta u - u v^2 + F (1 - u)
-\frac{\partial v}{\partial t} = D_v \Delta v + u v^2 - v (F + K)</code></pre>
+<pre><code>    \frac{\partial u}{\partial t} = D_u \Delta u - u v^2 + F (1 - u)
+    \frac{\partial v}{\partial t} = D_v \Delta v + u v^2 - v (F + K)</code></pre>
 <p>You can specify this model as follows:</p>
-<pre><code>-Delta_u=&quot;Du*laplacian(u)-u*v*v+F*(1-u)&quot; \
--Delta_v=&quot;Dv*laplacian(v)+u*v*v-v*(F+K)&quot;</code></pre>
+<pre><code>    -Delta_u=&quot;Du*laplacian(u)-u*v*v+F*(1-u)&quot; \
+    -Delta_v=&quot;Dv*laplacian(v)+u*v*v-v*(F+K)&quot;</code></pre>
 <p><code>Du</code>, <code>Dv</code>, <code>F</code>, and <code>K</code> are parameters of that model.</p>
 <h4 id="initial-pattern--duv_backgroundu0v0--duv_dropu1v1">Initial pattern: <code>-DUV_BACKGROUND=&lt;u0&gt;,&lt;v0&gt; -DUV_DROP=&lt;u1&gt;,&lt;v1&gt;</code></h4>
 <p>The definitions specifies the initial amount of the two substances <code>u</code> and <code>v</code>.
@@ -235,15 +234,15 @@ added by <code>(u1, v1)</code>.</p>
 <h3 id="examples">Examples</h3>
 <p>Some interesting parameters are included in <code>Makefile</code>. Do one of the following
 commands and open <code>http://127.0.0.1:10333</code>.</p>
-<pre><code>make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 ioccc.txt
-make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 center.txt
-make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 line.txt
-make gray-scott-2 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-2 ioccc.txt
-make gray-scott-3 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-3 ioccc.txt
-make gray-scott-4 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-4 ioccc.txt
-make fitzhugh-nagumo-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./fitzhugh-nagumo-1 ioccc.txt
-make fitzhugh-nagumo-2 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./fitzhugh-nagumo-2 ioccc.txt
-make oregonator &amp;&amp; tcpserver -v 127.0.0.1 10333 ./oregonator ioccc.txt</code></pre>
+<pre><code>    make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 ioccc.txt
+    make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 center.txt
+    make gray-scott-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-1 line.txt
+    make gray-scott-2 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-2 ioccc.txt
+    make gray-scott-3 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-3 ioccc.txt
+    make gray-scott-4 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./gray-scott-4 ioccc.txt
+    make fitzhugh-nagumo-1 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./fitzhugh-nagumo-1 ioccc.txt
+    make fitzhugh-nagumo-2 &amp;&amp; tcpserver -v 127.0.0.1 10333 ./fitzhugh-nagumo-2 ioccc.txt
+    make oregonator &amp;&amp; tcpserver -v 127.0.0.1 10333 ./oregonator ioccc.txt</code></pre>
 <p>These examples are created by drawing (and modifying) the pattern files of
 <a href="https://github.com/GollyGang/ready">Ready</a>, a cross-platform implementation of
 various reaction-diffusion systems <a href="#fn2" class="footnote-ref" id="fnref2" role="doc-noteref"><sup>2</sup></a>.</p>
@@ -263,7 +262,7 @@ WebSocket <a href="#fn3" class="footnote-ref" id="fnref3" role="doc-noteref"><su
 <h4 id="tcpserver-alternatives">tcpserver alternatives</h4>
 <p>I think you may use <code>inetd</code> and <code>xinetd</code> instead of <code>tcpserver</code>. Here is an
 example <code>inetd</code> configuration.</p>
-<pre><code>10333 stream tcp nowait nobody /path/to/prog /path/to/prog /path/to/initial-pattern.txt</code></pre>
+<pre><code>    10333 stream tcp nowait nobody /path/to/prog /path/to/prog /path/to/initial-pattern.txt</code></pre>
 <p>But note that I didn’t test well.</p>
 <h3 id="internal">Internal</h3>
 <ol type="1">