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.

2020/kurdyukov3/.entry.json

@@ -47,7 +47,7 @@
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
 	    "display_via_github" : false,
-	    "entry_text" : "sample input"
+	    "entry_text" : "input file used by try.sh"
 	},
 	{
 	    "file_path" : "prog.extra.c",

2020/kurdyukov3/index.html

@@ -463,7 +463,7 @@ as these letters are encoded in the higher part of the single-byte character set
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/kurdyukov3/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/kurdyukov3/prog.alt.c">prog.alt.c</a> - alternate source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/kurdyukov3/prog.orig.c">prog.orig.c</a> - original source code</li>
-<li><a href="input.txt">input.txt</a> - sample input</li>
+<li><a href="input.txt">input.txt</a> - input file used by try.sh</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/kurdyukov3/prog.extra.c">prog.extra.c</a> - alternate source code with extra functionality</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/kurdyukov3/try.sh">try.sh</a> - script to try entry</li>
 </ul>