change test files that do not end in .txt to view via GitHub

1996/schweikh3/.entry.json

@@ -38,7 +38,7 @@
 	    "inventory_order" : 100,
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
-	    "display_via_github" : false,
+	    "display_via_github" : true,
 	    "entry_text" : "example output from various systems"
 	},
 	{

1996/schweikh3/index.html

@@ -275,7 +275,7 @@ minute or so.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh3/schweikh3.c">schweikh3.c</a> - entry source</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh3/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh3/schweikh3.orig.c">schweikh3.orig.c</a> - original source</li>
-<li><a href="schweikh3.info">schweikh3.info</a> - example output from various systems</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh3/schweikh3.info">schweikh3.info</a> - example output from various systems</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>