improve display_via_github and display_as values

Fixed some inconsistent use of display_via_github and display_as values.

1986/hague/index.html

@@ -188,7 +188,7 @@ credit, what Morse message does the program spell out?</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/hague/hague.c">hague.c</a> - entry source</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/hague/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/hague/hague.orig.c">hague.orig.c</a> - original source</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/hague/input.txt">input.txt</a> - sample input</li>
+<li><a href="input.txt">input.txt</a> - sample input</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/hague/try.sh">try.sh</a> - how to run</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>