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

2000/tomx/index.html

@@ -162,8 +162,8 @@ Location: <a href="../../location.html#NL">NL</a> - <em>Kingdom of the Netherlan
 <pre><code>    ./try.sh</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
 <p>This alternate code is based on the author’s remarks with a slight fix so that
-it will do what it once did, compile and run <a href="mkentry.c">mkentry.c</a>. You can use
-it in a similar way as <a href="tomx.c">tomx.c</a>, both executing the source file and
+it will do what it once did, compile and run <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/tomx/mkentry.c">mkentry.c</a>. You can use
+it in a similar way as <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/tomx/tomx.c">tomx.c</a>, both executing the source file and
 using it as a Makefile and running the code ends up running <code>mkentry</code>.</p>
 <h3 id="alternate-build">Alternate build:</h3>
 <pre><code>    make alt</code></pre>
@@ -210,7 +210,7 @@ like a C program.</p></li>
 program that it is. It is possible to do <code>#include "prog2.c"</code> in the place of
 the <code>main()</code>, leaving the complexities of the C file elsewhere and making this
 source still acceptable to <code>make</code> and <code>sh</code>. The following modification to the
-last few lines will compile the IOCCC’s famous <a href="mkentry.c">mkentry.c</a>.</li>
+last few lines will compile the IOCCC’s famous <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/tomx/mkentry.c">mkentry.c</a>.</li>
 </ol>
 <pre><code>    .PHONY: /* true clean */
     #undef   true