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

2013/hou/.entry.json

@@ -46,7 +46,7 @@
 	    "inventory_order" : 100,
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
-	    "display_via_github" : false,
+	    "display_via_github" : true,
 	    "entry_text" : "sample input"
 	},
 	{
@@ -54,7 +54,7 @@
 	    "inventory_order" : 100,
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
-	    "display_via_github" : false,
+	    "display_via_github" : true,
 	    "entry_text" : "sample input"
 	},
 	{

2013/hou/index.html

@@ -358,8 +358,8 @@ frequently found in other <code>PPM</code> implementations.</p></li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/hou.orig.c">hou.orig.c</a> - original source</li>
 <li><a href="doc/example.html">doc/example.html</a> - detailed information about entry</li>
-<li><a href="old_default.scene">old_default.scene</a> - sample input</li>
-<li><a href="otherroom.scene">otherroom.scene</a> - sample input</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/old_default.scene">old_default.scene</a> - sample input</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/otherroom.scene">otherroom.scene</a> - sample input</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/try.sh">try.sh</a> - how to run</li>
 <li><a href="luna.jpg">luna.jpg</a> - sample image data</li>
 <li><a href="old_default.jpg">old_default.jpg</a> - sample image data</li>