improve PR #246 - part 1

Fixed links between rules and guidelines.

Add guideline about "Rule 2 - Size restrictions" not changing soon.

Expand "Guidelines for Rule 13 - No carriage returns in prog.c".

Put the word, "restrictions" into "Rule 2 - Size restrictions".
While this is a **GOOD IDEA**, the concept needs to be rolled out
over all of the rules, not just "Rule 2 - Size restrictions".

Changed IOCCC Rules to version **29.13 2025-12-01**.
Changed IOCCC Guidelines to version **29.06 2025-12-01**.

Ran `make quick_www` to perform the above.

next/rules.html

@@ -480,7 +480,7 @@ granted provided this copyright and notice are included in its entirety
 and remains unaltered. All other uses <strong>MUST</strong> receive prior permission in
 writing by <a href="../contact.html">contacting the judges</a>.</p>
 <h2 id="rules-version">Rules Version</h2>
-<p>These IOCCC Rules are version <strong>29.12 2025-12-01</strong>.</p>
+<p>These IOCCC Rules are version <strong>29.13 2025-12-01</strong>.</p>
 <p class="leftbar">
 The <span style="font-size:28px;"><b>|</b></span> symbol indicates an <strong>change</strong> from the previous IOCCC.
 </p>
@@ -521,7 +521,7 @@ FAQ on “<a href="../faq.html#feedback">How can I comment or make a suggestion
 <p class="leftbar">
 Your submission <strong>MUST</strong> be a C program.
 </p>
-<p>See the <a href="guidelines.html#guidelines-for-rule-1---c-program">Guidelines for Rule 1 - C program</a>.</p>
+<p>See the <a href="guidelines.html#guideline1-c">Guidelines for Rule 1 - C program</a>.</p>
 <div id="rule2">
 <div id="rule2-size-restrictions">
 <div id="rule2-size">
@@ -537,7 +537,7 @@ and
 <a href="rules.html#rule2b">Rule 2b (Net Size)</a>.
 During development this can be checked using <code>iocccsize(1)</code>:</p>
 <pre><code>    iocccsize prog.c</code></pre>
-<p>See the <a href="guidelines.html#guideline-2---size">Guidelines for Rule 2 - Size restrictions</a>.</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">
@@ -559,8 +559,8 @@ exceed <strong>4993</strong> bytes.</p>
 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
 NOT</strong> exceed <strong>2503</strong>.</p>
-<p><strong>NOTE</strong>: <code>iocccsize</code> does <strong>NOT</strong> calculate the filename length. See <a href="#rule17-mkiocccentry">Rule 17 -
-Use mkiocccentry</a>.</p>
+<p><strong>NOTE</strong>: <code>iocccsize</code> does <strong>NOT</strong> calculate the filename length.</p>
+<p>See <a href="#rule17-mkiocccentry">Rule 17 - Use mkiocccentry</a>.</p>
 <div id="rule3">
 <div id="rule3-register">
 <h2 id="rule-3---register-for-the-ioccc">Rule 3 - Register for the IOCCC</h2>
@@ -572,7 +572,7 @@ to the IOCCC. You may register while the contest is <strong>pending</strong> or
 temporary password, which you <strong>MUST</strong> change within 14 days.</p>
 <p>See <a href="register.html">How to register for the IOCCC</a>.</p>
 <p>See <a href="../quick-start.html#enter">Entering the IOCCC: the bare minimum you need to know</a>.</p>
-<p>See <a href="guidelines.html#guideline-3---register">Guidelines for Rule 3 - Register for the IOCCC</a>.</p>
+<p>See <a href="guidelines.html#guideline3-register">Guidelines for Rule 3 - Register for the IOCCC</a>.</p>
 <div id="rule4">
 <div id="rule4-required-files">
 <h2 id="rule-4---required-files">Rule 4 - Required files</h2>
@@ -645,9 +645,9 @@ a case insensitive filesystem.</p>
 <p>See <a href="rules.html#rule17-mkiocccentry">Rule 17 - Use mkiocccentry</a>.</p>
 <p>See the
 FAQ on “<a href="../faq.html#file_perms">What permissions may my files be and what if I need different permissions?</a>”.</p>
-<p>See the <a href="guidelines.html#mkiocccentry_toolkit">Guidelines on the mkiocccentry toolkit</a>.</p>
 <p>See the
 FAQ on “<a href="../faq.html#makefile_details">What are the detailed recommendations for a submission Makefile?</a>”.</p>
+<p>See the <a href="guidelines.html#mkiocccentry_toolkit">Guidelines on the mkiocccentry toolkit</a>.</p>
 <div id="rule5">
 <div id="rule5-modifying-files">
 <h2 id="rule-5---do-not-modify-submitted-files-or-filenames-or-parent-directories">Rule 5 - Do NOT modify submitted files or filenames or parent directories</h2>
@@ -696,7 +696,7 @@ You are permitted to use tools to write your code.
 </p>
 <p>See <a href="rules.html#rule16-anonymous-judging">Rule 16 - Anonymous Judging</a>,
 and
-<a href="guidelines.html#guideline-7---original-work">Guidelines for Rule 7 - Original Work</a>.</p>
+<a href="guidelines.html#guideline7-original">Guidelines for Rule 7 - Original Work</a>.</p>
 <div id="rule8">
 <div id="rule8-submitting-requirements">
 <h2 id="rule-8---submitting-requirements">Rule 8 - Submitting requirements</h2>
@@ -720,6 +720,7 @@ validate your submission.
 <a href="rules.html#rule15-gnu-makefile">Rule 15 - GNU Makefile</a>,
 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">
 <h2 id="rule-9---no-interactive-compiling-allowed">Rule 9 - No interactive compiling allowed</h2>
 </div>
@@ -734,6 +735,7 @@ the make command.</p>
 <p><strong>NOTE</strong>: it is better and more portable to <strong>NOT</strong> modify the <code>${CC}</code> variable
 in the Makefile.</p>
 <p>See <a href="rules.html#rule15-gnu-makefile">Rule 15 - GNU Makefile</a>.</p>
+<p>See <a href="guidelines.html#guideline9-no-interactive">Guidelines for Rule 9 - No interactive compiling allowed</a>.</p>
 <div id="rule10">
 <h2 id="rule-10---program-file-permissions">Rule 10 - Program file permissions</h2>
 </div>
@@ -772,7 +774,7 @@ is rejected.</p>
 version, <strong>PLEASE</strong> indicate that in your <code>remarks.md</code> file of your non-rule
 abusing version so that the Judges don’t think you uploaded a duplicate into a
 wrong slot by mistake.</p>
-<p>See <a href="guidelines.html#guideline-11---abuse">Guidelines for Rule 11 - Legal rule abuse</a>.</p>
+<p>See <a href="guidelines.html#guideline11-abuse">Guidelines for Rule 11 - Legal rule abuse</a>.</p>
 <div id="rule12">
 <div id="rule12-utf8">
 <h2 id="rule-12---utf-8">Rule 12 - UTF-8</h2>
@@ -780,6 +782,7 @@ wrong slot by mistake.</p>
 </div>
 <p>Use of UTF-8 is supported by <code>C89</code> standard and its updates and so too by the
 IOCCC.</p>
+<p>See <a href="guidelines.html#guideline12-utf8">Guidelines for Rule 12 - UTF-8</a>.</p>
 <div id="rule13">
 <h2 id="rule-13---no-carriage-returns-in-prog.c">Rule 13 - No carriage returns in prog.c</h2>
 </div>
@@ -795,6 +798,7 @@ limits, to <strong>NOT</strong> end source with a newline. If you
 need to do this, please document that in your <code>remarks.md</code> file and if
 your compiler complains about this, document this too and update your
 <code>Makefile</code> to account for this.</p>
+<p>See <a href="guidelines.html#guideline13-nocr">Guidelines for Rule 13 - No carriage returns in prog.c</a>.</p>
 <div id="rule14">
 <h2 id="rule-14---resubmitting-lost-submissions">Rule 14 - Resubmitting lost submissions</h2>
 </div>
@@ -839,7 +843,7 @@ GNU long name options (such as <code>--example</code>) or extensions like <code>
 <p>See <a href="rules.html#rule4-required-files">Rule 4 - Required files</a>.</p>
 <p>See
 FAQ on “<a href="../faq.html#makefile_details">What are the detailed recommendations for a submission Makefile?</a>”.</p>
-<p>See <a href="guidelines.html#guideline-15---building">Guidelines for Rule 15 - GNU Makefile</a>.</p>
+<p>See <a href="guidelines.html#guideline15-gnu-makefile">Guidelines for Rule 15 - GNU Makefile</a>.</p>
 <div id="rule16">
 <div id="rule16-anonymous-judging">
 <h2 id="rule-16---anonymous-judging">Rule 16 - Anonymous judging</h2>
@@ -900,7 +904,7 @@ to the command’s <code>-h</code> “<em>print help message</em>”, again notw
 for testing and the IOCCC judges.
 </p>
 <p class="leftbar">
-The <code>prog.c</code> file should pass the <a href="rules.html#rule2-size">Rule 2 - Size</a>
+The <code>prog.c</code> file should pass the <a href="rules.html#rule2-size">Rule 2 - Size restrictions</a>
 checks performed by <code>iocccsize(1)</code>.
 </p>
 <p class="leftbar">
@@ -915,7 +919,7 @@ version of the <a href="https://github.com/ioccc-src/mkiocccentry">mkiocccentry
 <p>See <a href="rules.html#rule4-required-files">Rule 4 - Required files</a>.</p>
 <p>See the
 FAQ on “<a href="../faq.html#mkiocccentry">What is the mkiocccentry tool, how do I obtain it and how do I use it?</a>”.</p>
-<p>See the <a href="guidelines.html#guideline-17---packaging">Guidelines for Rule 17 - Use mkiocccentry</a>.</p>
+<p>See the <a href="guidelines.html#guideline17-mkiocccentry">Guidelines for Rule 17 - Use mkiocccentry</a>.</p>
 <div id="rule18">
 <h2 id="rule-18---submission-license">Rule 18 - Submission license</h2>
 </div>