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.

2000/schneiderwent/README.md

@@ -1,22 +1,22 @@
 ## To build:
 
 ```sh
-make
+    make
 ```
 
 
 ## To use:
 
 ```sh
-./schneiderwent
+    ./schneiderwent
 ```
 
 
 ## Try:
 
 ```sh
-./schneiderwent schneiderwent.data
-./schneiderwent
+    ./schneiderwent schneiderwent.data
+    ./schneiderwent
 ```
 
 What's the difference?
@@ -25,7 +25,7 @@ If you have a long while to spare (and you're bored enough that you could watch
 paint dry :-) ) you might also try:
 
 ```sh
-./try.sh
+    ./try.sh
 ```
 
 Alternatively, you can check on it later on, to see all the entry does. Or if
@@ -34,7 +34,7 @@ iterations and how many iterations it runs. For instance to make it sleep only
 30 seconds and run only twice:
 
 ```sh
-SLEEP=30 ITERATIONS=2 ./try.sh
+    SLEEP=30 ITERATIONS=2 ./try.sh
 ```
 
 

2000/schneiderwent/index.html

@@ -132,8 +132,7 @@
 <h2 id="author"><a name="author"></a>Author:</h2>
 <ul>
 <li>Name: <a href="../../authors.html#Craig_Schneiderwent">Craig Schneiderwent</a><br>
-Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)
-<br><br></li>
+Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)</li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -142,21 +141,21 @@ 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>
-<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>
 <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">./schneiderwent</span></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">./schneiderwent</span></span></code></pre></div>
 <h2 id="try">Try:</h2>
-<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="ex">./schneiderwent</span> schneiderwent.data</span>
-<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./schneiderwent</span></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="ex">./schneiderwent</span> schneiderwent.data</span>
+<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./schneiderwent</span></span></code></pre></div>
 <p>What’s the difference?</p>
 <p>If you have a long while to spare (and you’re bored enough that you could watch
 paint dry :-) ) you might also try:</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">./try.sh</span></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">./try.sh</span></span></code></pre></div>
 <p>Alternatively, you can check on it later on, to see all the entry does. Or if
 you wish to make it run faster, you can override how long it sleeps per
 iterations and how many iterations it runs. For instance to make it sleep only
 30 seconds and run only twice:</p>
-<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="va">SLEEP</span><span class="op">=</span>30 <span class="va">ITERATIONS</span><span class="op">=</span>2 <span class="ex">./try.sh</span></span></code></pre></div>
+<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>    <span class="va">SLEEP</span><span class="op">=</span>30 <span class="va">ITERATIONS</span><span class="op">=</span>2 <span class="ex">./try.sh</span></span></code></pre></div>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>Very nice play by the rules and portable text obfuscation.
 This far surpasses old tricks like adding or subtracting 1