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/jarijyrki/index.html

@@ -135,8 +135,7 @@
 Location: <a href="../../location.html#SE">SE</a> - <em>Kingdom of Sweden</em> (<em>Sweden</em>)
 <br><br></li>
 <li>Name: <a href="../../authors.html#Jyrki_Holopainen">Jyrki Holopainen</a><br>
-Location: <a href="../../location.html#FI">FI</a> - <em>Republic of Finland </em> (<em>Finland</em>)
-<br><br></li>
+Location: <a href="../../location.html#FI">FI</a> - <em>Republic of Finland </em> (<em>Finland</em>)</li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -145,20 +144,20 @@ Location: <a href="../../location.html#FI">FI</a> - <em>Republic of Finland </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>You will need X11 header files and libraries installed to build this program.</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">./jarijyrki</span> <span class="op">&lt;</span> infile.info <span class="op">&gt;</span> outfile.info</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">./jarijyrki</span> <span class="op">&lt;</span> infile.info <span class="op">&gt;</span> outfile.info</span></code></pre></div>
 <p>You will need a system capable of displaying the results of X Window programs.</p>
 <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">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</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">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</span></code></pre></div>
 <p>Then click on cell <code>C3</code> and type in the following:</p>
-<pre><code>C5 C6 C7 @</code></pre>
+<pre><code>    C5 C6 C7 @</code></pre>
 <p>Click on cell <code>D4</code> and type in the following:</p>
-<pre><code>C5 C6 C7 !</code></pre>
+<pre><code>    C5 C6 C7 !</code></pre>
 <p>Hit <code>ESC</code>.</p>
 <p>Now try running:</p>
-<pre><code>./jarijyrki &lt; myedits.info</code></pre>
+<pre><code>    ./jarijyrki &lt; myedits.info</code></pre>
 <p>And observe that it matches what you had in the previous run!</p>
 <p>NOTE: changing the dimension parameters (see the authors’ remarks) renders
 existing spreadsheet files unusable.</p>
@@ -191,7 +190,7 @@ supports are:</p>
 <h3 id="usage-instructions">2. USAGE INSTRUCTIONS</h3>
 <h4 id="quick-guide">2.1. Quick Guide</h4>
 <h5 id="starting">Starting</h5>
-<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">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</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">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</span></code></pre></div>
 <h5 id="stopping">Stopping</h5>
 <p>Use the ESC key.</p>
 <h5 id="movement">Movement</h5>
@@ -200,29 +199,29 @@ supports are:</p>
 <p>The currently selected cell is always in the edit state. Press any key to add a
 character at the end of the formula; press backspace to delete the last one.</p>
 <h5 id="formulas">Formulas</h5>
-<pre><code>123.45
-A1 A2 +
-B1 B2 -
-C1 C2 *
-D1 D2 /</code></pre>
+<pre><code>    123.45
+    A1 A2 +
+    B1 B2 -
+    C1 C2 *
+    D1 D2 /</code></pre>
 <h5 id="pie-charts">Pie charts</h5>
-<pre><code>A1 A2 A3 ...</code></pre>
+<pre><code>    A1 A2 A3 ...</code></pre>
 <p>Finish the formula with <code>@</code> to create the pie chart.</p>
 <h5 id="histograms">Histograms</h5>
-<pre><code>A1 A2 A3 ...</code></pre>
+<pre><code>    A1 A2 A3 ...</code></pre>
 <p>Finish the formula with <code>!</code> to create the histogram.</p>
 <h4 id="starting-and-loading-spreadsheets">2.2. Starting and Loading Spreadsheets</h4>
 <p>To start the spreadsheet program with an existing
 spreadsheet, for instance <a href="finance.sheet">finance.sheet</a>, use the following
 command line:</p>
-<div class="sourceCode" id="cb11"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet</span></code></pre></div>
+<div class="sourceCode" id="cb11"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet</span></code></pre></div>
 <p>The file <a href="finance.sheet">finance.sheet</a> has been provided as an example. This
 file contains a set of financial numbers and two graphical entities - a pie
 chart and a histogram - based on them. We recommend starting the use of the
 program from this file, as a way to study and learn the formula language
 supported by the program.</p>
 <p>To start the program with an empty sheet, use</p>
-<div class="sourceCode" id="cb12"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./jarijyrki</span> <span class="op">&lt;</span> /dev/null</span></code></pre></div>
+<div class="sourceCode" id="cb12"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./jarijyrki</span> <span class="op">&lt;</span> /dev/null</span></code></pre></div>
 <p>Alternatively, <code>/dev/zero</code> could be used but that may not exist on all systems.</p>
 <h4 id="exiting-and-saving-spreadsheets">2.3. Exiting and Saving Spreadsheets</h4>
 <p>Normally the user obviously wants to edit the spreadsheet. After the
@@ -230,7 +229,7 @@ spreadsheet program finishes, it outputs the edited spreadsheet to the standard
 output. Hence, when the spreadsheet window has come up, you’ve made your
 changes, and you press the ESC key the program finishes. To save the results in
 a file, the following typical command line would be used:</p>
-<div class="sourceCode" id="cb13"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</span></code></pre></div>
+<div class="sourceCode" id="cb13"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a>    <span class="ex">./jarijyrki</span> <span class="op">&lt;</span> finance.sheet <span class="op">&gt;</span> myedits.info</span></code></pre></div>
 <h4 id="visual-overview">2.4. Visual Overview</h4>
 <p>On top of the window the Formula Area shows the formula (or text) of the
 currently selected cell. The program starts with <code>A1</code> as being the current cell.
@@ -259,17 +258,17 @@ plus) are first pushed to the stack and then the operation is performed. If a
 formula on a cell produces <em>exactly</em> one result then that is shown in the cell.
 Otherwise, the formula is interpreted as a string and shown as it is.</p>
 <p>An example of a simple formula, simply specifying a number is</p>
-<pre><code>123.50</code></pre>
+<pre><code>    123.50</code></pre>
 <p>Another simple formula refers to a cell:</p>
-<pre><code>A1</code></pre>
+<pre><code>    A1</code></pre>
 <p>This particular example formula referred to the first cell of the first row in
 the spreadsheet. Arithmetic operations require both arguments:</p>
-<pre><code>A1 A2 +
-B1 B2 *
-C1 C2 -
-D1 D2 /</code></pre>
+<pre><code>    A1 A2 +
+    B1 B2 *
+    C1 C2 -
+    D1 D2 /</code></pre>
 <p>More complex formulae can be constructed by combining these simple ones:</p>
-<pre><code>A1 A2 + 2 *</code></pre>
+<pre><code>    A1 A2 + 2 *</code></pre>
 <p>This example calculates the sum of the cells <code>A1</code> and <code>A2</code>, and then multiplies
 the result by two.</p>
 <p>The currently selected cell is always in a state where it can be edited. Press
@@ -282,11 +281,11 @@ of certain commercial spreadsheet programs.)</p>
 cells: pie charts and histograms. The pie chart can consist of any number of
 slices, and is constructed by putting the pie amounts in stack and using the <code>@</code>
 operator. The program automatically computes the relative size of the slices.</p>
-<pre><code>A1 A2 A3 A4 @</code></pre>
+<pre><code>    A1 A2 A3 A4 @</code></pre>
 <p>This example would draw a pie chart of four cells, <code>A1</code> to <code>A4</code>.
 The pie formula is shown above the pie for reference.</p>
 <p>The histograms are drawn in a similar manner, by using the <code>!</code> operator:</p>
-<pre><code>A1 A2 A3 A3 !</code></pre>
+<pre><code>    A1 A2 A3 A3 !</code></pre>
 <h4 id="errors-in-formulas">2.8. Errors in Formulas</h4>
 <p>The program detects recursive reference attempts, references cells not
 containing a numerical value, attempts to define formulas with zero, two, or
@@ -301,12 +300,12 @@ value supposedly returned by it.</p>
 <p>This section explains the meaning and rationale for the
 compile time parameters:</p>
 <hr />
-<pre><code>-DC=XK_Up
--DL=XK_Down
--DO=XK_Left
--DV=XK_Right
--DR=XK_Escape
--D_=XK_BackSpace</code></pre>
+<pre><code>    -DC=XK_Up
+    -DL=XK_Down
+    -DO=XK_Left
+    -DV=XK_Right
+    -DR=XK_Escape
+    -D_=XK_BackSpace</code></pre>
 <p>These definitions can be used to change the user interface of the program with
 respect to special keys. The first four define the movement operations and
 the latter two define the program termination and character deletion keys.
@@ -314,36 +313,36 @@ Typical modifications to these parameters include changing character deletion to
 the key the user is most familiar with, which could also be <code>XK_Delete</code>.
 <code>XK_Escape</code> might be better in some cases as one of the function keys. Likewise
 for the arrow keys.</p>
-<pre><code>-DU=40</code></pre>
+<pre><code>    -DU=40</code></pre>
 <p>This parameter defines the maximum dimensions of the stored and handled
 spreadsheet (but see section 4.4 for a warning about changing this without
 thinking about the consequences!).</p>
-<pre><code>-DT=98</code></pre>
+<pre><code>    -DT=98</code></pre>
 <p>This parameter defines the maximum length of a formula in one cell. Note the
 warning in section 4.4.</p>
-<pre><code>-Dz=&quot;(T+1)*U*U&quot;</code></pre>
+<pre><code>    -Dz=&quot;(T+1)*U*U&quot;</code></pre>
 <p>Defines the number of bytes in a spreadsheet file. The number is automatically
 adjusted when the spreadsheet size parameters are changed. Note the warning in
 section 4.4.</p>
-<pre><code>-DQ=80
--DS=20</code></pre>
+<pre><code>    -DQ=80
+    -DS=20</code></pre>
 <p>These two parameters define the visual dimensions of a cell. Changing these may
 be necessary on your system if the default font sizes differ from those in the
 systems we’ve tested the program with. <code>S</code> also defines the size of the left
 (<code>x1</code>) and top margins (<code>x2</code>).</p>
-<pre><code>-DN=10</code></pre>
+<pre><code>    -DN=10</code></pre>
 <p>This is the x-indentation of text inside a cell. Changing this may be necessary
 to suit other font sizes and different X environments.</p>
-<pre><code>-DB=5</code></pre>
+<pre><code>    -DB=5</code></pre>
 <p>This is the y-indentation of text inside a cell. Changing this may be necessary
 to suit other font sizes and different X environments.</p>
-<pre><code>-DG=23</code></pre>
+<pre><code>    -DG=23</code></pre>
 <p>This parameter is the number of cell rows visible at one time.</p>
-<pre><code>-Dp=7</code></pre>
+<pre><code>    -Dp=7</code></pre>
 <p>This parameter is one smaller than the number of cells columns visible at one
 time.</p>
-<pre><code>-DM=&quot;((p+1)*Q)+S&quot;
--DH=&quot;(G*S)+S+S&quot;</code></pre>
+<pre><code>    -DM=&quot;((p+1)*Q)+S&quot;
+    -DH=&quot;(G*S)+S+S&quot;</code></pre>
 <p>These parameters are the window x and y sizes of the spreadsheet program window.
 With these definitions, they are automatically reflecting the
 at-one-time-visible cell row/column amounts. Hence, we recommend changing the