align no thank you's in markdown.html, add make markdown

Added `make markdown` to the top level `Makefile` to just build
the `markdown.html` file.

Sorted make rules that build individual HTML files.

Performed `make gen_top_html` to accomplish the above and to test under macOS.

Makefile

@@ -352,12 +352,13 @@ help:
 	@echo
 	@echo '# Rules for building specific web pages, a subset of rules mentioned above:'
 	@echo
-	@echo 'make thanks		;: generate thanks-for-help.html'
 	@echo 'make bugs		;: generate bugs.html'
-	@echo 'make rules		;: generate next/rules.hmtl'
+	@echo 'make faq		;: generate faq.html'
 	@echo 'make guidelines		;: generate next/guidelines.hmtl'
-	@echo 'make faq	        ;: generate faq.html'
+	@echo 'make markdown		;: generate markdown.hmtl'
+	@echo 'make rules		;: generate next/rules.hmtl'
 	@echo 'make security		;: generate SECURITY.html'
+	@echo 'make thanks		;: generate thanks-for-help.html'
 	@echo
 	@echo '# Compound make rules for building a local copy of the IOCCC website:'
 	@echo
@@ -588,6 +589,13 @@ bugs: ${GEN_TOP_HTML} bugs.md
 	@echo "Eh, what's up, doc?"
 	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
 
+faq: ${GEN_TOP_HTML} faq.md
+	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
+	@echo "You have a question?"
+	${GEN_TOP_HTML} -v 1 faq
+	@echo "Perhaps the FAQ might help!"
+	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
+
 gen_next: ${GEN_TOP_HTML} next/README.md next/guidelines.md next/rules.md
 	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
 	${GEN_TOP_HTML} -v 1 next/README
@@ -595,23 +603,16 @@ gen_next: ${GEN_TOP_HTML} next/README.md next/guidelines.md next/rules.md
 	${GEN_TOP_HTML} -v 1 next/rules
 	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
 
+markdown: ${GEN_TOP_HTML} markdown.md
+	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
+	${GEN_TOP_HTML} -v 1 markdown
+	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
+
 rules: ${GEN_TOP_HTML} next/rules.md
 	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
 	${GEN_TOP_HTML} -v 1 next/rules
 	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
 
-guidelines: ${GEN_TOP_HTML} next/guidelines.md
-	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
-	${GEN_TOP_HTML} -v 1 next/guidelines
-	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
-
-faq: ${GEN_TOP_HTML} faq.md
-	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
-	@echo "You have a question?"
-	${GEN_TOP_HTML} -v 1 faq
-	@echo "Perhaps the FAQ might help!"
-	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
-
 security: ${GEN_TOP_HTML} SECURITY.md
 	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
 	${GEN_TOP_HTML} -v 1 SECURITY

markdown.html

@@ -467,7 +467,7 @@ anchors.</p>
 </div>
 <p>Please do <strong>NOT</strong> use the obsolete <code>&lt;tt&gt;</code>
 (<span style="font-family: monospace;"><strong>teletype</strong></span>) HTML element:</p>
-<pre><code>    &lt;tt&gt;The tt element is obsolete&lt;/tt&gt;              &lt;=== no thank you</code></pre>
+<pre><code>    &lt;tt&gt;The tt element is obsolete&lt;/tt&gt;                       &lt;=== no thank you</code></pre>
 <p>Instead use either a monospaced <code>&lt;span&gt;</code> or an inline markdown code block:</p>
 <pre><code>    &lt;span style=&quot;font-family: monospace;&quot;&gt;Use of a monospaced font
                                           is one option,
@@ -482,7 +482,7 @@ anchors.</p>
 <p>Please do <strong>NOT</strong> start code blocks at the first column.</p>
 <p>For example:</p>
 <pre class="&lt;!---markdown--&gt;"><code>``` &lt;!---sh--&gt;
-echo &quot;This code block is NOT indented&quot;                       &lt;=== no thank you
+echo &quot;This code block is NOT indented&quot;                        &lt;=== no thank you
 ```</code></pre>
 <p>We request that you indent the code block by multiples of 4 ASCII <strong>SPACES</strong>:</p>
 <pre class="&lt;!---markdown--&gt;"><code>``` &lt;!---sh--&gt;
@@ -513,10 +513,10 @@ used as part of the leading whitespace within a markdown file.</p>
 ASCII tab characters anywhere inside a markdown file:</p>
 <p>For example:</p>
 <pre class="&lt;!---markdown--&gt;"><code>```
-    Please do **NOT**   use ASCII tabs  in markdown files.      &lt;=== no thank you
+    Please do **NOT**   use ASCII tabs  in markdown files.    &lt;=== no thank you
-        Please do **NOT** indent markdown with ASCII tabs.      &lt;=== no thank you
+        Please do **NOT** indent markdown with ASCII tabs.    &lt;=== no thank you
 
-        We      don&#39;t   mind    tabs    in      general,        &lt;=== no thank you
+        We      don&#39;t   mind    tabs    in      general,      &lt;=== no thank you
      We just ask that you NOT use them in markdown files.
 ```</code></pre>
 <p>And to clarify, we are only talking about markdown files,
@@ -556,7 +556,7 @@ spaces.</p>
 blocks</a>
 <strong>NOT</strong> specify a language directly.</p>
 <p>For example:</p>
-<pre class="&lt;!---markdown--&gt;"><code>```c                                                            &lt;=== no thank you
+<pre class="&lt;!---markdown--&gt;"><code>```c                                                          &lt;=== no thank you
     int main(void) {return 0;}
 ```</code></pre>
 <p>Instead, put the language inside an HTML comment, separated from the
@@ -732,12 +732,12 @@ an underscore (<code>_</code>). Using an asterisk can complicate parsing and som
 to incorrect results. This can especially go for when it is <strong><em>bold and
 italic</em></strong>.</p>
 <p>For example, instead of:</p>
-<pre><code>     *this text is italic*        &lt;=== no thank you</code></pre>
+<pre><code>     *this text is italic*                                    &lt;=== no thank you</code></pre>
 <p>use:</p>
 <pre><code>     _this text is italic_</code></pre>
 <p>Another example, for <strong><em>bold italic</em></strong>:</p>
 <p>Do <strong>NOT</strong> use:</p>
-<pre><code>     ***this text is bold italic***         &lt;=== no thank you</code></pre>
+<pre><code>     ***this text is bold italic***                           &lt;=== no thank you</code></pre>
 <p>Instead use:</p>
 <pre><code>     **_this text is bold italic_**</code></pre>
 <p>or:</p>

markdown.md

@@ -145,7 +145,7 @@ Please do **NOT** use the obsolete `<tt>`
 (<span style="font-family: monospace;">**teletype**</span>) HTML element:
 
 ``` <!---html-->
-    <tt>The tt element is obsolete</tt>              <=== no thank you
+    <tt>The tt element is obsolete</tt>                       <=== no thank you
 ```
 
 Instead use either a monospaced `<span>` or an inline markdown code block:
@@ -175,7 +175,7 @@ For example:
 
 ```` <!---markdown-->
 ``` <%%NO_COMMENT%%!---sh-->
-echo "This code block is NOT indented"                       <=== no thank you
+echo "This code block is NOT indented"                        <=== no thank you
 ```
 ````
 
@@ -223,10 +223,10 @@ For example:
 
 ```` <!---markdown-->
 ```
-    Please do **NOT**	use ASCII tabs	in markdown files.      <=== no thank you
+    Please do **NOT**	use ASCII tabs	in markdown files.    <=== no thank you
-	Please do **NOT** indent markdown with ASCII tabs.      <=== no thank you
+	Please do **NOT** indent markdown with ASCII tabs.    <=== no thank you
 
-	We	don't	mind	tabs	in	general,        <=== no thank you
+	We	don't	mind	tabs	in	general,      <=== no thank you
      We just ask that you NOT use them in markdown files.
 ```
 ````
@@ -294,7 +294,7 @@ blocks](https://www.markdownguide.org/extended-syntax/#fenced-code-blocks)
 For example:
 
 ```` <!---markdown-->
-```c                                                            <=== no thank you
+```c                                                          <=== no thank you
     int main(void) {return 0;}
 ```
 ````
@@ -617,7 +617,7 @@ italic_**.
 For example, instead of:
 
 ``` <!---markdown-->
-     *this text is italic*        <=== no thank you
+     *this text is italic*                                    <=== no thank you
 ```
 
 use:
@@ -632,7 +632,7 @@ Do **NOT** use:
 
 
 ``` <!---markdown-->
-     ***this text is bold italic***         <=== no thank you
+     ***this text is bold italic***                           <=== no thank you
 ```
 
 Instead use:
@@ -646,4 +646,3 @@ or:
 ``` <!---markdown-->
      _**this text is bold italic**_
 ```
-