Format, typo, consistency check YYYY/README.md

There are many fixes made but a few questions remain so when I reach
those years I will address those then. Unfortunately, due to
infrastructure work right now, this is all I can say even though there
are a number of things I'd like to say.

thanks-for-help.html

@@ -3958,6 +3958,7 @@ implicitly (Linux doesn’t seem to but macOS does).</p>
 <div id="2014">
 <h1 id="the-23rd-ioccc"><a href="2014/index.html">2014 - The 23rd IOCCC</a></h1>
 </div>
+<p><a href="#yusuke">Yusuke</a> added the missing <code>rules.txt</code>, <code>iocccsize.c</code> and <code>iocccsize.mk</code> files.</p>
 <div id="2014_birken">
 <h2 id="winning-entry-2014birken">Winning entry: <a href="2014/birken/index.html">2014/birken</a></h2>
 <h3 id="winning-entry-source-code-prog.c">Winning entry source code: <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2014/birken//prog.c">prog.c</a></h3>