Various fixes and updates

The links to rules should all be good. This includes in news.html,
quick-start.html, next/submit.html, 2024/index.html (it had been
modified to refer to next/rules.html instead of 2024/rules.html) as well
as the guidelines and rules themselves (under next/).

Various typo fixes. I'm afraid there are likely others but I must let
others deal with that as I am out of time.

Removed FAQ about mastodon push notifications. When I added the FAQ
about push notifications for mastodon I was incorrect. The web browser
interface suggests it but I never got a push notification even before
Apple broke them. There seems to be no way at this time to get them. I
note that there was a screenshot in the FAQ but this file still is in
the repo possibly.

I regenerated the html files but it's possible I forgot to do one at the
last minute.

news.html

@@ -747,11 +747,11 @@ as well as a critical fix for installing on BSD based systems.</p>
 and compile the <a href="faq.html#mkiocccentry">mkiocccentry tool set</a>. You may also wish to install this code.
 See also the <a href="https://github.com/ioccc-src/mkiocccentry/blob/master/FAQ.md">mkiocccentry FAQ</a> for more information.</p>
 <h2 id="section-17">2024-12-30</h2>
-<p>The IOCCC <a href="next/rules.html#rule-12---utf-8">Rule 12 - UTF-8</a> no longer discourages the
+<p>The IOCCC <a href="next/rules.html#rule12-utf8">Rule 12 - UTF-8</a> no longer discourages the
 use of UTF-8 in C source. Since the days of <code>-std=gnu17</code> compilers,
 UTF-8 characters do not impose a compiler problem. The related guideline
 states that “Rule 13 no longer discourages the use of UTF-8 +characters in C code”.</p>
-<p>The IOCCC <a href="next/rules.html#rule-8---submission">Rule 8 - Submission</a> wording has been fixed. It no longer
+<p>The IOCCC <a href="next/rules.html#rule8-submitting-requirements">Rule 8 - Submitting requirements</a> wording has been fixed. It no longer
 states that email will be sent. Instead it talks about potential slot comment
 modifications as means to tell the submitter that their submission was received.</p>
 <p>All of the import IOCCC dates within the <a href="next/rules.html">IOCCC rules</a>