improve PR #246 - part 2

Simplify link tags in rules and guidelines.

Ran `make quick_www` to perform the above.

next/rules.html

@@ -525,12 +525,10 @@ Your submission <strong>MUST</strong> be a C program.
 <div id="rule2">
 <div id="rule2-size-restrictions">
 <div id="rule2-size">
-<div id="rule-2---size">
 <h2 id="rule-2---size-restrictions">Rule 2 - Size restrictions</h2>
 </div>
 </div>
 </div>
-</div>
 <p><code>Rule 2</code> requires that your submission satisfy <strong>BOTH</strong>
 <a href="rules.html#rule2a">Rule 2a (Gross Size)</a>
 and
@@ -540,21 +538,17 @@ During development this can be checked using <code>iocccsize(1)</code>:</p>
 <p>See the <a href="guidelines.html#guideline2-size">Guidelines for Rule 2 - Size restrictions</a>.</p>
 <div id="rule2a">
 <div id="rule2a-gross-size">
-<div id="rule-2a-gross-size">
 <h3 id="rule-2a---gross-size">Rule 2a - Gross Size</h3>
 </div>
 </div>
-</div>
 <p>The overall maximum size of your <code>prog.c</code> program source <strong>MUST NOT</strong>
 exceed <strong>4993</strong> bytes.</p>
 <p>See <a href="../quick-start.html#enter">Entering the IOCCC: the bare minimum you need to know</a>.</p>
 <div id="rule2b">
 <div id="rule2b-net-size">
-<div id="rule-2b-net-size">
 <h3 id="rule-2b---net-size">Rule 2b - Net Size</h3>
 </div>
 </div>
-</div>
 <p>When the filename of your program source (i.e., <code>prog.c</code>) is given as a
 command line argument to the latest version of the official IOCCC size
 tool (hereby referred to as <code>iocccsize(1)</code>), the value printed <strong>MUST
@@ -678,7 +672,7 @@ Your code should be able to run under a
 <pre><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>
+<p>See <a href="rules.html#rule19-prime">Rule 19 - Prime</a>.</p>
 <div id="rule7">
 <div id="rule7-original-work">
 <h2 id="rule-7---original-work">Rule 7 - Original Work</h2>
@@ -722,8 +716,10 @@ and
 <a href="rules.html#rule17-mkiocccentry">Rule 17 - Use mkiocccentry</a>.</p>
 <p>See <a href="guidelines.html#guideline8-submitting">Guidelines for Rule 8 - Submitting requirements</a>.</p>
 <div id="rule9">
+<div id="rule9-no-interactive">
 <h2 id="rule-9---no-interactive-compiling-allowed">Rule 9 - No interactive compiling allowed</h2>
 </div>
+</div>
 <p>Entries requiring human interaction to be initially compiled are <strong>NOT</strong>
 permitted. However, see the guidelines. Each entry <strong>MUST</strong> automate the
 build process using <code>bash</code>, <code>gmake</code>, <code>gcc</code> and/or <code>clang</code> and other commonly
@@ -784,8 +780,10 @@ wrong slot by mistake.</p>
 IOCCC.</p>
 <p>See <a href="guidelines.html#guideline12-utf8">Guidelines for Rule 12 - UTF-8</a>.</p>
 <div id="rule13">
+<div id="rule13-nocr">
 <h2 id="rule-13---no-carriage-returns-in-prog.c">Rule 13 - No carriage returns in prog.c</h2>
 </div>
+</div>
 <p>Any C source that fails to compile because lines contain carriage-returns
 (CTRL+M, <code>\r</code>) in particular as part of DOS/Windows style newlines might
 be rejected. Please do <strong>NOT</strong> put trailing CTRL+M in <code>prog.c</code>, <code>Makefile</code>,
@@ -925,10 +923,12 @@ FAQ on “<a href="../faq.html#mkiocccentry">What is the mkiocccentry tool, how
 </div>
 <p>The entirety of your submission <strong>MUST</strong> be submitted under the following license:</p>
 <p><a href="https://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0 DEED Attribution-ShareAlike 4.0 International</a></p>
-<p>See <a href="rules.html#rule-7---original-work">Rule 7 - Original Work</a>.</p>
+<p>See <a href="rules.html#rule7-original-work">Rule 7 - Original Work</a>.</p>
 <div id="rule19">
+<div id="rule19-prime">
 <h2 id="rule-19---prime">Rule 19 - Prime</h2>
 </div>
+</div>
 <p class="leftbar">
 This 19th rule, while prime, is reserved for future abuse 😁.
 Additional rules, both humorous and otherwise, may be added