fix more broken markdown links

Fixed stuff we broke by mistake, previously.

Ran `make www` to perform the above.

TODO: Fix stuff we broke by mistake doing the above.

TODO: Fix more broken markdown links.

2020/index.html

@@ -398,12 +398,12 @@ system may require certain changes (add or remove a library, add or remove a
 lacking, you may need to compile using clang or gcc instead of your local
 compiler.</p>
 <h2 id="remarks-on-some-of-the-winning-entries">Remarks on some of the winning entries</h2>
-<p>This year’s <a href="carlini/index.html">Best of Show (carlini)</a> is such a novel way of
+<p>This year’s <a href="carlini/index.html">Best of Show - 2020/carlini</a> is such a novel way of
 obfuscation that it would be worth of a special mention in the (future) Best of
 IOCCC list!</p>
 <p>For some reason, this year’s set of winning entries contains three nostalgic games,
-<a href="tsoj/index.html">Asteroids (tsoj)</a>, <a href="endoh1/index.html">Minesweeper (endoh1)</a>,
-and <a href="ferguson1/index.html">Snake (ferguson1)</a>.</p>
+<a href="tsoj/index.html">Asteroids - 2020/tsoj</a>, <a href="endoh1/index.html">Minesweeper - 2020/endoh1</a>,
+and <a href="ferguson1/index.html">Snake - 2020/ferguson1</a>.</p>
 <p>An entry, <a href="kurdyukov1/index.html">kurdyukov1</a>, pays homage to previous entry
 <a href="2015/hou/index.html">2015/hou</a>.</p>
 <p>…We’ll stop spouting spoilers now. Have fun exploring all the entries!</p>