add next/submit.html and improve FAQ and other refs to entering the IOCCC

Added a new `next/submit.html` to move the "how to submit" form "in-line"
of the top FAQ entry into a new page managed by `next/submit.md`.
Thus, `next/submit.html` is a parallel to `next/register.html`
and `next/submit.md` is a parallel to `next/register.md`.

Changed the FAQ "faq.html#submit" and into "faq.html#enter".

Added individual tags for the steps in FAQ0.0.

Moved "faq.html#register" down to FAQ 0.0 step 2.

Added "faq.html#submit" for FAQ 0.0 step 5,
however elsewhere often "next/submit.html" is used.

Changed references for "faq.html#upload" to "next/submit.html".

We made a number of changes to the following markdown files to reflect the above:

- `about.md`
- `faq.md`
- `index.md`
- `markdown.md`
- `next/README.md`
- `next/README.md`
- `next/guidelines.md`
- `next/register.md`
- `next/rules.md`
- `nojs-menu.md`
- `status.md`

as well as these files:

- `bin/gen-top-html.sh`
- `bin/md2html.cfg`

and added:

- `next/submit.html`
- `next/submit.md`

Perform `make www` and `make gen_status` to perform the above and test under macOS.

TODO: Add images about the mailing list to `next/register.md`.  See the line:

```
XXX - **put images and other details about joining the mailing list here** - XXX
```

next/rules.html

@@ -435,9 +435,8 @@ and are <strong>likely be to be updated</strong> before the next IOCCC.</p>
 FAQ on “<a href="../faq.html#feedback">rules, guidelines, tools feedback</a>”
 as well as our
 FAQ on “<a href="../faq.html#question">about asking questions</a>”
-about these rules. You might also find the
-FAQ in general useful, especially the
-<a href="../faq.html#submit">FAQ section “How to enter: the bare minimum you need to know”</a>.</p>
+about these rules. You might also find the FAQ in general useful, especially the
+FAQ on “<a href="../faq.html#enter">how to enter the IOCCC</a>”.</p>
 <p>Watch both <a href="../status.html">the IOCCC status page</a> and the
 <a href="https://fosstodon.org/@ioccc"><span class="citation" data-cites="IOCCC">@IOCCC</span> mastodon feed</a> for information about
 future IOCCC openings.</p>
@@ -517,8 +516,11 @@ provisional <strong>BETA</strong> versions and <strong>may be adjusted <em>AT AN
 <a href="https://submit.ioccc.org">https://submit.ioccc.org</a>; at all other
 times that link is likely to be unresponsive.</p>
 <p>Please review our
-FAQ on “<a href="../faq.html#submit">how to submit</a>”
-for <strong>important information</strong> on how to submit to the IOCCC.</p>
+FAQ on “<a href="../faq.html#enter">how to enter the IOCCC</a>”
+as that FAQ has import details on
+<a href="register.html">how to register</a>
+as well as
+<a href="submit.html">how to upload your submission</a> for the IOCCC.</p>
 <p class="leftbar">
 The submit URL should be active on or slightly before <strong>2024-MMM-DD HH:MM:SS UTC</strong>.<br>
 <strong>XXX - date/time is TBD - XXX</strong>
@@ -532,10 +534,13 @@ at the <a href="https://github.com/ioccc-src/mkiocccentry">report mkiocccentry b
 are using the correct versions of these items <em>before using the IOCCC
 submission URL</em>.</p>
 <p>See the
-FAQ on “<a href="../faq.html#mkiocccentry">obtaining and compiling the mkiocccentry
-tools</a>”
+FAQ on “<a href="../faq.html#mkiocccentry">obtaining and compiling the mkiocccentry tools</a>”
 and the
-FAQ on “<a href="../faq.html#submit">submitting to the IOCCC</a>”.</p>
+FAQ on “<a href="../faq.html#enter">how to enter the IOCCC</a>”
+as that FAQ has import details on
+<a href="register.html">how to register</a>
+as well as
+<a href="submit.html">how to upload your submission</a> for the IOCCC.</p>
 <p>Jump to: <a href="#">top</a></p>
 <div id="rules">
 <h1 id="ioccc-rules">IOCCC RULES</h1>
@@ -628,8 +633,8 @@ as a command like argument to the <code>iocccsize(1)</code> tool. For example:
 <div id="rule3">
 <h2 id="rule-3">Rule 3</h2>
 </div>
-<p>Submissions should be performed using the instructions outlined in our
-FAQ on “<a href="../faq.html#submit">how to submit</a>”</p>
+<p>Submissions should be performed using the instructions outlined in
+“<a href="submit.html">how to upload your submission</a>”.</p>
 <p>To submit to an open IOCCC, you must use the <a href="https://submit.ioccc.org/">IOCCC submit
 server</a>. Unless the IOCCC is open, that link will
 likely be unresponsive.</p>