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.

2020/kurdyukov4/index.html

@@ -132,8 +132,7 @@
 <h2 id="author"><a name="author"></a>Author:</h2>
 <ul>
 <li>Name: <a href="../../authors.html#Ilya_Kurdyukov">Ilya Kurdyukov</a><br>
-Location: <a href="../../location.html#RU">RU</a> - <em>Russian Federation</em> (<em>Russia</em>)
-<br><br></li>
+Location: <a href="../../location.html#RU">RU</a> - <em>Russian Federation</em> (<em>Russia</em>)</li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -142,13 +141,13 @@ Location: <a href="../../location.html#RU">RU</a> - <em>Russian Federation</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>
 <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">./prog</span> text_file output_length context_length random_seed</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">./prog</span> text_file output_length context_length random_seed</span></code></pre></div>
 <h2 id="try">Try:</h2>
 <p>When running this, ask yourself why it gets progressively slower when the
 context length decreases:</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="ex">./try.sh</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">./try.sh</span></span></code></pre></div>
 <blockquote>
 <p>Performance depends on the number of same hashes found.
 Too many identical strings if the context length is small.
@@ -164,11 +163,11 @@ way it works too fast regardless of the context length, and it’s much less fun
 If some string only appears after half the input, the first instance
 of this string will have a 50% chance of occurrence.
 Example:</p>
-<pre><code>echo &quot;00000000000000000000 01 02 02 02 02 02 02&quot; &gt; test.txt
-./prog test.txt 1000 2 123
-# more twos in output
-./rand test.txt 1000 2 123
-# more ones in output</code></pre>
+<pre><code>    echo &quot;00000000000000000000 01 02 02 02 02 02 02&quot; &gt; test.txt
+    ./prog test.txt 1000 2 123
+    # more twos in output
+    ./rand test.txt 1000 2 123
+    # more ones in output</code></pre>
 <blockquote>
 <p>But this will happen very rarely on real data.
 – Author</p>
@@ -184,11 +183,11 @@ Middle-earth (HoMe)</a>.
 Now can you appreciate the award title a bit better?</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <h3 id="building">Building:</h3>
-<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="fu">cc</span> prog.c <span class="at">-o</span> prog</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="fu">cc</span> prog.c <span class="at">-o</span> prog</span></code></pre></div>
 <h3 id="usage">Usage:</h3>
 <p>This program generates random text from the provided dictionary using a Markov
 chain, outputting to <code>stdout</code>.</p>
-<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./prog</span> input.txt 2000 10 12345</span></code></pre></div>
+<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./prog</span> input.txt 2000 10 12345</span></code></pre></div>
 <p>Parameters are:</p>
 <ol type="1">
 <li><p>dictionary filename
@@ -210,33 +209,33 @@ the output of this size in bytes exists somewhere in the dictionary.</p></li>
 <h3 id="example">Example</h3>
 <p>You can try this with the inputs provided with
 <a href="../../2019/mills/index.html">2019/mills</a> from the IOCCC entries.</p>
-<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./prog Shakespeare.txt 2001 10 12345</span></code></pre></div>
+<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">$</span> ./prog Shakespeare.txt 2001 10 12345</span></code></pre></div>
 <p>produces:</p>
-<pre><code>r sons, wives for them, as the hope I had it. This is the way they be not too ra
-sh a trial of you only. Therefore will not out of door? Nurse: Marry, bachelor,
-Have other some, he is in Rome: but where is Warwick frowns at his. PRINCE EDWAR
-D: Where is the light: But I will watch thy waking, what work he makes Amongst y
-ou? Come, sirs, We shall write to you, fortune and The hazard of much blood. I w
-ould to heaven, respective lenity, And fire-eyed fury be my convoy in the senten
-ced; &#39;tis too horrible, so bloody on the banks If they were created, Would bring
- them to our presence? FLORIZEL: And those his golden crown, What is six winters
-? they are but Lewis and Warwick bids you come too late come from the king&#39;s fri
-end, and will do&#39;t; for, look you, sir, For still thy true servitor: I will rend
- an oak And peg thee in his knotty entrails till Thou hast hazel eyes: what eye
-but such an eye would spy out such a day to-morrow, or next day: He is within th
-e limit of the like, forsworn to love, Send her a story of more woe Than this is
- a merry ballad, but a very pretty one. MOPSA: Thou hast amazed me, My name is E
-lbow: I do lean upon, Now thou art: Thy tears are womanish; thy wild acts denote
- The unreasonably: come, you must: and there, I then do&#39;t to them? VOLUMNIA: Now
- the red pestilence hangs in our aim, which is yours. What is&#39;t your honour, as
-in war, since then, You have said before: My child is dead; or &#39;twere not &#39;long
-of him; but he, like you, lads; about your ears it is Menenius? Second Officer:
-Come, come, young wanton and effeminate boy, Takes on the hungry beach Fillip th
-e stars Shall bitterly begin his wooing that we have in hand are angry And frown
-ing brow to brow, ourselves, Still your own affections are devised, As blanks, b
-enevolences, and I thank thee for it. KING HENRY VI: Master lieutenant comes. Ma
-ster lieutenant comes. Master lieutenant, pray you,-- CORIOLANUS: What&#39;s that to
- him? CHRISTOPHER: At Pembroke, Sir James Blunt, And Rice ap Thomas with a virtu</code></pre>
+<pre><code>    r sons, wives for them, as the hope I had it. This is the way they be not too ra
+    sh a trial of you only. Therefore will not out of door? Nurse: Marry, bachelor,
+    Have other some, he is in Rome: but where is Warwick frowns at his. PRINCE EDWAR
+    D: Where is the light: But I will watch thy waking, what work he makes Amongst y
+    ou? Come, sirs, We shall write to you, fortune and The hazard of much blood. I w
+    ould to heaven, respective lenity, And fire-eyed fury be my convoy in the senten
+    ced; &#39;tis too horrible, so bloody on the banks If they were created, Would bring
+     them to our presence? FLORIZEL: And those his golden crown, What is six winters
+    ? they are but Lewis and Warwick bids you come too late come from the king&#39;s fri
+    end, and will do&#39;t; for, look you, sir, For still thy true servitor: I will rend
+     an oak And peg thee in his knotty entrails till Thou hast hazel eyes: what eye
+    but such an eye would spy out such a day to-morrow, or next day: He is within th
+    e limit of the like, forsworn to love, Send her a story of more woe Than this is
+     a merry ballad, but a very pretty one. MOPSA: Thou hast amazed me, My name is E
+    lbow: I do lean upon, Now thou art: Thy tears are womanish; thy wild acts denote
+     The unreasonably: come, you must: and there, I then do&#39;t to them? VOLUMNIA: Now
+     the red pestilence hangs in our aim, which is yours. What is&#39;t your honour, as
+    in war, since then, You have said before: My child is dead; or &#39;twere not &#39;long
+    of him; but he, like you, lads; about your ears it is Menenius? Second Officer:
+    Come, come, young wanton and effeminate boy, Takes on the hungry beach Fillip th
+    e stars Shall bitterly begin his wooing that we have in hand are angry And frown
+    ing brow to brow, ourselves, Still your own affections are devised, As blanks, b
+    enevolences, and I thank thee for it. KING HENRY VI: Master lieutenant comes. Ma
+    ster lieutenant comes. Master lieutenant, pray you,-- CORIOLANUS: What&#39;s that to
+     him? CHRISTOPHER: At Pembroke, Sir James Blunt, And Rice ap Thomas with a virtu</code></pre>
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