move how-to-help.md into FAQ

Moved the contents of how-to-help.md into the FAQ as FAQ 5.2.

Renamed FAQ 5.0 _Why does an IOCCC winner fail to compile or or
fail run?_ to FAQ 3.13.

Added FAQ 5.0 for _How may I help the IOCCC?_.

Added FAQ 5.3 for _How may I report an IOCCC web site problem?_.

Added FAQ 5.4 for _How may I submit a fix to an IOCCC web site?_.

judges.html

@@ -24,7 +24,6 @@ Contest </I></FONT></CENTER><BR>
 <A HREF="years.html">Winning entries</A>
 <BR><BR>
 <A HREF="bugs.md">Known Bugs &amp; (Mis)features</A> |
-<A HREF="how-to-help.md">How to fix an IOCCC winner</A> |
 <A HREF="thanks-for-fixes.md">Thanks for the fixes</A> |
 <A HREF="www-history.md">A bit of web site history</A>
 </CENTER>