update manifest for 2001/westley and thanks-for-help HTML

Leo added the missing `2001/westley/card.gif`.

Form `thanks-for-help.html` from modified `thanks-for-help.md`.

2001/westley/.entry.json

@@ -45,6 +45,14 @@
             "display_via_github" : true,
             "entry_text" : "original source code"
         },
+        {
+            "file_path" : "card.gif",
+            "inventory_order" : 100,
+            "OK_to_edit" : true,
+            "display_as" : "image",
+            "display_via_github" : false,
+            "entry_text" : "image of punch cards"
+        },
         {
             "file_path" : "try.sh",
             "inventory_order" : 100,