improve location.html

Add request for help for the "ZZ - Unknown location" authors.

Add "Jump to: top" near the bottom.

Changed `bin/gen-location.sh` VERSION from to "1.3 2024-04-16"
to "1.4 2024-04-21".

Improved FAQ 5.5, asking for help for ZZ location authors
and making better references to FAQ 6.10 about pull requests.

Run `make gen_location gen_top_html` to perform the above.

faq.html

@@ -1893,6 +1893,12 @@ and ask for help. See <a href="#fix_an_entry">FAQ 5.3</a> for information on ope
 <h2 id="faq-5.5-how-may-i-correct-or-update-ioccc-author-information">FAQ 5.5: How may I correct or update IOCCC author information?</h2>
 </div>
 </div>
+<h4 id="please-help-us-identify-proper-locations-for-ioccc-authors">PLEASE HELP us identify proper locations for IOCCC authors</h4>
+<p>If you know the location of an author listed under:</p>
+<p>      <strong><a href="location.html#ZZ">ZZ - Unknown location</a></strong></p>
+<p>or if you find IOCCC author location that is incorrect,
+then <strong>please <a href="faq.html#pull_request">submit a pull request</a></strong>,
+or at least <a href="contact.html">inform the IOCCC judges</a>.</p>
 <p>Authors of IOCCC winning entries are kept in JSON files of the form:</p>
 <pre><code>    author/author_handle.json</code></pre>
 <p>where <em>author_handle</em> is an author handle. See <a href="#author_handle">FAQ 6.5</a> for more
@@ -1901,11 +1907,11 @@ information about author handles.</p>
 about authors of IOCCC entries. See <a href="#author_json">FAQ 6.6</a> for information
 about the contents of these JSON file and how they are used.</p>
 <p>You may update IOCCC author information in a <code>author_handle.json</code> file
-by opening a <a href="https://github.com/ioccc-src/winner/pulls">GitHub pull request</a>
+by <a href="faq.html#pull_request">submitting a pull request</a>
 against the master <a href="https://github.com/ioccc-src/winner/branches">branch</a>
 of the <a href="https://github.com/ioccc-src/winner">ioccc-src/winner repo</a>.</p>
-<p>Please see <a href="#fix_an_entry">FAQ 5.2 How may I submit a fix to an IOCCC
-entry</a>. See also the <a href="#ull_request">FAQ 6.10 How does someone
+<p>Please see <a href="#fix_an_entry">FAQ 5.2 How may I submit a fix to an IOCCC entry</a>.</p>
+<p>See also the <a href="#ull_request">FAQ 6.10 How does someone
 make a change to a file and submit that change as a GitHub pull
 request</a> for more information about pull requests.</p>
 <div id="faq5_6">