checkpoint rules.md for quoted language blocks

next/rules.html

@@ -590,9 +590,9 @@ original form, including the removal of any created files and directories.</p>
 <h2 id="rule-6---free">Rule 6 - Free</h2>
 </div>
 <p>I am <strong>NOT</strong> a Rule, I am a <code>free(void *human);</code> ‼️</p>
-<div class="sourceCode" id="cb1"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>    <span class="cf">while</span> <span class="op">(!(</span>ioccc<span class="op">(</span>rule<span class="op">(</span>you<span class="op">(</span>are<span class="op">(</span>number<span class="op">(</span><span class="dv">6</span><span class="op">))))))</span> <span class="op">{</span></span>
-<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a>        ha<span class="op">();</span> ha<span class="op">();</span> ha<span class="op">();</span></span>
-<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a>    <span class="op">}</span></span></code></pre></div>
+<pre class="&lt;!--c-&gt;"><code>    while (!(ioccc(rule(you(are(number(6)))))) {
+        ha(); ha(); ha();
+    }</code></pre>
 <p>See <a href="rules.html#rule-19---prime">Rule 19 - Prime</a>.</p>
 <div id="rule7">
 <h2 id="rule-7---original-work">Rule 7 - Original Work</h2>
@@ -718,7 +718,7 @@ i.e., do <strong>NOT</strong> expect <code>git clean -f</code> to work.</p>
 <p>The <code>Makefile</code> <strong>MUST</strong> use a syntax that is compatible with
 <code>bash(1)</code> and GNU <code>make(1)</code>. You are encouraged to use <code>SHELL= bash</code> in your <code>Makefile</code>; please add a space between the <code>=</code> and
 the value such as:</p>
-<p>SHELL= bash</p>
+<pre class="&lt;!--sh-&gt;"><code>    SHELL= bash</code></pre>
 <p>Assume that commands commonly found in <a href="https://en.wikipedia.org/wiki/Single_UNIX_Specification">Single UNIX
 Specification</a>
 environments and systems are available in the search

next/rules.md

@@ -202,12 +202,11 @@ Your code should be able to run under a
 
 I am **NOT** a Rule, I am a `free(void *human);` ‼️
 
-```c
+``` <!--c->
     while (!(ioccc(rule(you(are(number(6)))))) {
         ha(); ha(); ha();
     }
 ```
-
 See [Rule 19 - Prime](rules.html#rule-19---prime).
 
 
@@ -379,8 +378,9 @@ The `Makefile` **MUST** use a syntax that is compatible with
 bash` in your `Makefile`; please add a space between the `=` and
 the value such as:
 
+``` <!--sh->
     SHELL= bash
-
+```
 Assume that commands commonly found in [Single UNIX
 Specification](https://en.wikipedia.org/wiki/Single_UNIX_Specification)
 environments and systems are available in the search