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

1985/sicherman/index.html

@@ -167,10 +167,10 @@ more details on it.</p>
 <h2 id="try">Try:</h2>
 <pre><code>    ./try.sh</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
-<p>The <a href="sicherman.alt.c">sicherman.alt.c</a> is a slight change in the fixed version
+<p>The <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1985/sicherman/sicherman.alt.c">sicherman.alt.c</a> is a slight change in the fixed version
 (fixed so it does not require <code>-traditional-cpp</code>) in that it has two args to
 <code>main()</code> as some compilers object to certain number of args in <code>main()</code>. This
-will be built in the case of the <a href="sicherman.c">sicherman.c</a> failing to compile.
+will be built in the case of the <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1985/sicherman/sicherman.c">sicherman.c</a> failing to compile.
 In this case it’ll be compiled to <code>sicherman</code> to simplify it for the larger
 audience.</p>
 <h3 id="alternate-build">Alternate build:</h3>