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.

1996/rcm/README.md

@@ -1,14 +1,14 @@
 ## To build:
 
 ```sh
-make all
+    make all
 ```
 
 
 ## To use:
 
 ```sh
-./rcm < file.gz
+    ./rcm < file.gz
 ```
 
 where `file.gz` is some gzipped file.
@@ -19,7 +19,7 @@ where `file.gz` is some gzipped file.
 For more information try:
 
 ```sh
-./try.sh
+    ./try.sh
 ```
 
 
@@ -28,7 +28,7 @@ For more information try:
 For a good no-op try:
 
 ```sh
-gzip -c < rcm.c | ./rcm
+    gzip -c < rcm.c | ./rcm
 ```
 
 NOTE: this is done in the [try.sh](try.sh) script as well, along with some other
@@ -71,7 +71,7 @@ from the GNU gzip source tree is 31,613 characters in length and uncompresses
 the emacs distribution file in slightly under 25 seconds.  Thus:
 
 ```
-3100 / 130 = 23.85       -vs-      31613 / 25 = 1264.52
+    3100 / 130 = 23.85       -vs-      31613 / 25 = 1264.52
 ```
 
 which represents a better than 530% improvement in the ratio of

1996/rcm/index.html

@@ -132,8 +132,7 @@
 <h2 id="author"><a name="author"></a>Author:</h2>
 <ul>
 <li>Name: <a href="../../authors.html#Ron_McFarland">Ron McFarland</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 -->
@@ -142,16 +141,16 @@ 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> all</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> all</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">./rcm</span> <span class="op">&lt;</span> file.gz</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">./rcm</span> <span class="op">&lt;</span> file.gz</span></code></pre></div>
 <p>where <code>file.gz</code> is some gzipped file.</p>
 <h2 id="try">Try:</h2>
 <p>For more information try:</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>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>For a good no-op 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="fu">gzip</span> <span class="at">-c</span> <span class="op">&lt;</span> rcm.c <span class="kw">|</span> <span class="ex">./rcm</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="fu">gzip</span> <span class="at">-c</span> <span class="op">&lt;</span> rcm.c <span class="kw">|</span> <span class="ex">./rcm</span></span></code></pre></div>
 <p>NOTE: this is done in the <a href="try.sh">try.sh</a> script as well, along with some other
 commands including a way to do the above command but with more steps.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
@@ -176,7 +175,7 @@ file
 about 130 seconds on my HP 9000/735. The now obsolete source file `inflate.c’
 from the GNU gzip source tree is 31,613 characters in length and uncompresses
 the emacs distribution file in slightly under 25 seconds. Thus:</p>
-<pre><code>3100 / 130 = 23.85       -vs-      31613 / 25 = 1264.52</code></pre>
+<pre><code>    3100 / 130 = 23.85       -vs-      31613 / 25 = 1264.52</code></pre>
 <p>which represents a better than 530% improvement in the ratio of
 source file size to execution time.”</p>
 <h4 id="the-whining-programmers-argument">The Whining Programmer’s Argument:</h4>