fix internal links in entry index.html from 1984 thru 2012

2001/coupard/index.html

@@ -172,8 +172,8 @@ to read obviously): when they interact with the user, they only
 of sight: this program is a self-contained speech synthesizer that
 tells the current time through the computer’s sound card - in just under
 2 Kb of source code !</p>
-<p>In the 2001 IOCCC <a href="../../2001/rules.txt">rules</a> and
-<a href="../../2001/guidelines.txt">guidelines</a> documents, there is no mention of
+<p>In the 2001 IOCCC <a href="../rules.txt">rules</a> and
+<a href="../guidelines.txt">guidelines</a> documents, there is no mention of
 what is or isn’t acceptable regarding audio I/O, but it is mentioned
 that hardware-specific and/or non-portable programs are not welcome. So,
 in order to do audio and satisfy those requirements, the format required