Add missing final comments to top README.md files

In some cases the comments were there but there was no section heading.
In others the section was not there at all.

These files have NOT been checked in other ways. That will come another
day most likely and very possibly not until early next year.

1993/README.md

@@ -47,6 +47,9 @@ judges@toad.com
 If you use, distribute or publish these entries in some way, please drop
 us a line.  We enjoy seeing who, where and how the contest is used.
 
+
+## Final Comments
+
 **IMPORTANT NOTE**: The email addresses found above are for historical
 purposes only, and should not be used today.  See
 [contact.html](/contact.html) for up to date contact details