Add table of contents (years) to bugs file

bugs.html

@@ -383,6 +383,20 @@
 
 <!-- BEFORE: 1st line of markdown file: bugs.md -->
 <h1 id="bugs-and-misfeatures">Bugs and (mis)features</h1>
+<h2 id="table-of-contents">Table of Contents</h2>
+<p>If you are going to try and fix any bugs please read the next sections first.
+If however you want to jump to a specific year or you have already done so and
+you wish to help with a year, you can use these links:</p>
+<ul>
+<li><a href="#1984">1984 entries</a> | <a href="#1985">1985 entries</a> | <a href="#1986">1986 entries</a> | <a href="#1987">1987 entries</a></li>
+<li><a href="#1988">1988 entries</a> | <a href="#1989">1989 entries</a> | <a href="#1990">1990 entries</a> | <a href="#1991">1991 entries</a></li>
+<li><a href="#1992">1992 entries</a> | <a href="#1993">1993 entries</a> | <a href="#1994">1994 entries</a> | <a href="#1995">1995 entries</a></li>
+<li><a href="#1996">1996 entries</a> | <a href="#1998">1998 entries</a> | <a href="#2000">2000 entries</a> | <a href="#2001">2001 entries</a></li>
+<li><a href="#2004">2004 entries</a> | <a href="#2005">2005 entries</a> | <a href="#2006">2006 entries</a> | <a href="#2011">2011 entries</a></li>
+<li><a href="#2012">2012 entries</a> | <a href="#2013">2013 entries</a> | <a href="#2014">2014 entries</a> | <a href="#2015">2015 entries</a></li>
+<li><a href="#2018">2018 entries</a> | <a href="#2019">2019 entries</a> | <a href="#2020">2020 entries</a></li>
+</ul>
+<h2 id="please-read-the-next-sections-if-you-wish-to-help">PLEASE read the next sections if you wish to help</h2>
 <p>There are a number of known problems with IOCCC entries: many of
 which have to do with differences between today’s compiler environments
 and those of today. In some cases the original code has a bug, some