Major FAQ updates

A number of question answers have been merged and shortened somewhat.

Fix link in the menu of all html pages and the inc/ files that was
broken due to renaming an anchor.

The guidelines and rules have had a link fix (to the FAQ) as well as
some additional points added about the mkiocccentry toolkit.

More work in the FAQ needs to be done, including with the how to enter
the IOCCC, but as so much work has been done already I have decided to
make the commit to get these many important changes out of the way.

1985/lycklama/index.html

@@ -137,7 +137,7 @@
             </div>
 
             <div class="outfit-font">
-              <a href="../../faq.html#fix_web_site" class="sub-item-link">
+              <a href="../../faq.html#fix_website" class="sub-item-link">
                 Fixing the website
               </a>
             </div>
@@ -288,7 +288,7 @@
               Fixing IOCCC entries
             </a>
 
-            <a class="mobile-submenu-item" href="../../faq.html#fix_web_site">
+            <a class="mobile-submenu-item" href="../../faq.html#fix_website">
               Fixing the website
             </a>