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.

quick-start.html

@@ -566,13 +566,13 @@ for more info.</p></li>
 <p><strong>NOTE</strong>: Please see our <a href="markdown.html">IOCCC markdown guide</a> for <strong>important information</strong> on using markdown in the IOCCC.</p>
 <p>If the <code>mkiocccentry</code> tool indicates that there is a problem with your
 submission, especially if it identifies a
-<a href="next/rules.html#rule-2---size">Rule 2 - Size</a>,
+<a href="next/rules.html#rule2-size">Rule 2 - Size restrictions</a>,
 or any other <a href="next/rules.html">rule</a>, related problem, you are <strong>strongly</strong> encouraged to revise and
 correct your entry and then re-run the <code>mkiocccentry</code> tool.</p>
 <p>If you choose to risk violating <a href="next/rules.html">Rules</a>, be sure and explain your reason
 for doing so in your <code>remarks.md</code> file.</p>
 <p>See also
-<a href="next/rules.html#rule-17---packaging">Rule 17 - Packaging</a>!</p>
+<a href="next/rules.html#rule17-mkiocccentry">Rule 17 - Use mkiocccentry</a>!</p>
 <p><strong>IMPORTANT NOTE</strong>: the tools that require other tools, <code>mkiocccentry(1)</code> and
 <code>txzchk(1)</code>, will, as of version <code>2.0.2 2025-03-11</code>, search under <code>$PATH</code>. If
 you have an earlier version and you have not installed the tools and run the
@@ -581,7 +581,7 @@ tools to set the path to the required tools.</p>
 <p>Do remember to make sure you have the latest vers
 <code>chksubmit(1)</code>, <code>txzchk(1)</code> and <code>fnamchk(1)</code>. And remember to make sure you have
 the latest version so you do not violate
-<a href="next/rules.html#rule-17---packaging">Rule 17 - Packaging</a>.
+<a href="next/rules.html#rule17-mkiocccentry">Rule 17 - Use mkiocccentry</a>.
 See the
 FAQ on “<a href="faq.html#obtaining_mkiocccentry">obtaining the latest mkiocccentry tools</a>”,
 the