set pandoc 8 character tab stops for HTML conversion

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 "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`.

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

1995/dodsond1/index.html

@@ -152,7 +152,7 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 <pre><code>... a male (who) gets very, very frustrated sitting in a chair all
 the time because males are biologically driven to go out and hunt
 giraffes.
-    -- Adjunct Professor Newt Gingrich, Reinhardt College, 1/7/95</code></pre>
+        -- Adjunct Professor Newt Gingrich, Reinhardt College, 1/7/95</code></pre>
 <p>… which can be done like:</p>
 <div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="op">./</span>try<span class="op">.</span>sh</span></code></pre></div>
 <h2 id="authors-remarks">Author’s remarks:</h2>
@@ -171,11 +171,11 @@ code being inside the <code>()</code>’s of one of the 6 <code>orfa</code> loop
 
     You are free to share and adapt this file under the terms of this license:
 
-    Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
+        Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
 
     For more information, see:
 
-    https://creativecommons.org/licenses/by-sa/4.0/
+        https://creativecommons.org/licenses/by-sa/4.0/
 
 -->
 
@@ -239,7 +239,7 @@ code being inside the <code>()</code>’s of one of the 6 <code>orfa</code> loop
 <div class="footer">
   <h2>Copyright and CC BY-SA 4.0 License</h2>
   <p>This file and web page is:</p>
-  <blockquote><p><b>Copyright &copy; 1984-2024 by Landon Curt Noll. All Rights Reserved.</b></p></blockquote>
+  <blockquote><b>Copyright &copy; 1984-2024 by Landon Curt Noll. All Rights Reserved.</b></blockquote>
   <p>You are free to share and adapt this file under the terms of this license:</p>
   <blockquote><b>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</b></blockquote>
   <p>For more information, see:</p>