Fix menu and various other fixes

The menu in all html pages for the FAQ was fixed to link to the step 0
(of how to enter the contest) and also it was renamed ('Enter the
IOCCC').

I also went through the most important sections of the FAQ (how to
enter and the mkiocccentry related questions) and checked the
register.html, pw-change.html and submit.html pages. It is possible I
have missed something but I think it's in pretty good shape nonetheless.

next/guidelines.html

@@ -150,8 +150,8 @@
             </div>
 
             <div class="outfit-font">
-              <a href="../faq.html#submit" class="sub-item-link">
-                How to enter
+              <a href="../faq.html#enter" class="sub-item-link">
+                Enter the IOCCC
               </a>
             </div>
 
@@ -318,8 +318,8 @@
               Frequently Asked Questions
             </a>
 
-            <a class="mobile-submenu-item" href="../faq.html#submit">
-              How to enter
+            <a class="mobile-submenu-item" href="../faq.html#enter">
+              Enter the IOCCC
             </a>
 
             <a class="mobile-submenu-item" href="../faq.html#compiling">
@@ -457,7 +457,7 @@ writing by <a href="../contact.html">contacting the judges</a>.</p>
 </div>
 </div>
 <p class="leftbar">
-These <a href="guidelines.html">IOCCC guidelines</a> are version <strong>28.28 2024-12-07</strong>.
+These <a href="guidelines.html">IOCCC guidelines</a> are version <strong>28.29 2024-12-27</strong>.
 </p>
 <p><strong>IMPORTANT</strong>: Be <strong>SURE</strong> to read the <a href="rules.html">IOCCC rules</a>.</p>
 <p>Jump to: <a href="#">top</a></p>
@@ -511,6 +511,11 @@ The submit URL should be active on or slightly before <strong>2024-MMM-DD HH:MM:
 <strong>XXX - date/time is TBD - XXX</strong>
 </p>
 <p class="leftbar">
+See the
+FAQ on “<a href="../faq.html#enter">how to register and submit to the IOCCC</a>”
+for instructions on registering and participating in the IOCCC, as the process has changed from previous years!
+</p>
+<p class="leftbar">
 The <a href="rules.html">IOCCC rules</a> and these <a href="guidelines.html">IOCCC
 guidelines</a> will be available on the <a href="https://www.ioccc.org">Official IOCCC
 website</a> on or slightly before start of this IOCCC. Please check our
@@ -545,6 +550,11 @@ to account for the new <a href="https://github.com/ioccc-src/mkiocccentry">mkioc
 The IOCCC submission URL, <a href="../status.html#open">when the IOCCC is open</a>, is
 <a href="https://submit.ioccc.org/">submit.ioccc.org</a>.
 </p>
+<p class="leftbar">
+Because the Judges send you your initial login and password, and because it will
+not be immediate, you should <strong>MAKE SURE</strong> you give yourself enough time before
+the contest closes. In other words, don’t wait until the last few days!
+</p>
 <p>Jump to: <a href="#">top</a></p>
 <div id="hints">
 <div id="suggestions">