improve Copyright and CC

The inc/footer.default.html now has a common Copyright and CC BY-SA
4.0 License section for all generated HTML files.

All markdown files have a similar Copyright and CC
at the bottom in the form of an HTML comment.

tmp/OLD_manifest/README.md

@@ -640,3 +640,18 @@ A CSV file: one line per `winner`.
 The first field is a `winner_id`.
 
 The second field is the name of the award for given `winner`.
+
+
+<!--
+
+    Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
+
+    You are free to share and adapt this file under the terms of this license:
+
+	Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
+
+    For more information, see:
+
+	https://creativecommons.org/licenses/by-sa/4.0/
+
+-->

tmp/README.md

@@ -475,3 +475,18 @@ spreadsheet: one line per _YYYY/dir_ entry directory.
 The first field is a `entry_id`.
 
 The second field is the name of the award for given _YYYY/dir_ entry.
+
+
+<!--
+
+    Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
+
+    You are free to share and adapt this file under the terms of this license:
+
+	Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
+
+    For more information, see:
+
+	https://creativecommons.org/licenses/by-sa/4.0/
+
+-->