Fixes in 1986, manifest update

The html files in 1986 (including 1986/marshall/compilers.html) look and
feel good. Format change (slight) in 1986/marshall/index.html.

The manifest update includes a fix for 1986/hague and this same change
in entry_text applies to files in a few other years as well.

2019/yang/index.html

@@ -553,7 +553,7 @@ the same name, the character who is highly skilled in writing letters.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/yang/prog.c">prog.c</a> - entry source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/yang/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/yang/prog.orig.c">prog.orig.c</a> - original source code</li>
-<li><a href="ioccc.txt">ioccc.txt</a> - sample input</li>
+<li><a href="ioccc.txt">ioccc.txt</a> - input file used by try.sh</li>
 <li><a href="sample_input.txt">sample_input.txt</a> - sample input</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/yang/try.sh">try.sh</a> - script to try entry</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2019/yang/violet.c">violet.c</a> - source formatter as ASCII Violet Evergarden</li>