change years.html#entry_id links to entry's index.html page

2015/mills2/README.md

@@ -33,7 +33,7 @@ For more detailed information see [2015 mills2 bugs](../../bugs.html#2015_mills2
 ## Judges' remarks:
 
 Without ASCII art, the source code of this entry would have been exactly 256
-bytes.  Compared to [1990/jaw](../../years.html#1990_jaw), it is very
+bytes.  Compared to [1990/jaw](../../1990/jaw/index.html), it is very
 impressive, even taking into account the missing `atob` functionality. Now we wish
 for a `compress(1)`-like compressor using a similar idea.
 

2015/mills2/index.html

@@ -164,7 +164,7 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 <pre><code>    ./try.sh</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>Without ASCII art, the source code of this entry would have been exactly 256
-bytes. Compared to <a href="../../years.html#1990_jaw">1990/jaw</a>, it is very
+bytes. Compared to <a href="../../1990/jaw/index.html">1990/jaw</a>, it is very
 impressive, even taking into account the missing <code>atob</code> functionality. Now we wish
 for a <code>compress(1)</code>-like compressor using a similar idea.</p>
 <p>Why is the sad smiley on line 12 in that particular place?</p>