Various fixes in next and top level directory

Some broken links were fixed in some of the files like next/index.html,
next/pw-change.html, next/index.html and status.html.

Some wrong images were used in next/submit.html (or at least referred to
wrong if not wrong image).

Useful update to FAQ about the answers file in mkiocccentry.

There might have been other things.

This might be all that is needed for next/ wrt the register/change
password/submit but it's possible something has slipped through.

faq.html

@@ -698,13 +698,13 @@ for doing so in your <code>remarks.md</code> file.</p>
 </div>
 </div>
 <p>The screenshots about <a href="next/submit.html">how to upload your submission to the IOCCC</a>
-may be helpful a helpful guide when using the <a href="https://submit.ioccc.org">IOCCC submit server</a>.</p>
+might be a helpful guide when using the <a href="https://submit.ioccc.org">IOCCC submit server</a>.</p>
 <p><strong>NOTE</strong>: You may modify a previous uploaded submission, if the contest is
-<a href="status.html#open">open</a>, by replacing the file in a slot. Please use
+<a href="status.html#open">open</a>, by replacing the file in a slot. Please use the
 <a href="#mkiocccentry">mkiocccentry tool</a> to rebuild the compressed tarball as
-this will update the timestamps and the filename generated: making it
-clear to the <a href="judges.html">IOCCC judges</a> that you intend to replace
-the older upload.</p>
+this will update the timestamps and the filename generated, as well as packaging
+any changes: making it clear to the <a href="judges.html">IOCCC judges</a> that you intend
+to replace the older upload.</p>
 <p><strong>IMPORTANT NOTE</strong>: The <a href="https://submit.ioccc.org">IOCCC submit server</a>
 is only ready for submissions
 <strong>ONLY WHEN THE CONTEST IS <a href="status.html#open">open</a></strong>.</p>
@@ -712,6 +712,9 @@ is only ready for submissions
 <strong>IMPORTANT NOTE</strong>: When the contest is <a href="status.html#closed">closed</a>, the
 <a href="https://submit.ioccc.org">IOCCC submit server</a>
 may be offline and unreachable as a web site.</p>
+<p><strong>NOTE</strong>: if you do need to update a submission, you might find the
+FAQ on “<a href="#answers_file">how to not have to re-enter information more than once</a>”
+useful.</p>
 <p>Jump to: <a href="#">top</a></p>
 <div id="what_mkiocccentry">
 <div id="mkiocccentry">