Update license

Removed section about source code files possibly having embedded license information. None of the snippets in this collection have such information.

Author: delphidabbler

csdb/README.md

@@ -39,6 +39,6 @@ The project's change log can be found in `CHANGELOG.md` in the collection's base
 
 ## License
 
-All snippets in this collection are licensed under the MIT license **unless** the snippet contains contrary licensing information in its source code file, in which case that license applies to that snippet only.
+All snippets in this collection (stored in `.dat` files in the `collections` directory) are licensed under the MIT license and are copyright © 2005-2020, [Peter Johnson](https://gravatar.com/delphidabbler) and Contributors. The full license and a list of contributors can be found in the `LICENSE` and `CONTRIBUTORS` files in the `collection` sub-directory.
 
-Full details can be found in the `LICENSE` file in the `collection` sub-directory.
+All other files in this project are licensed under the MIT license and are copyright © 2020, [Peter Johnson](https://gravatar.com/delphidabbler).

csdb/collection/LICENSE

@@ -1,7 +1,4 @@
-All snippets in this collection are licensed under the MIT license (see below) UNLESS the snippet contains contrary licensing information in its source code file, in which case that license applies to that snippet only.
-
-MIT License
------------
+All snippets in this collection are licensed under the MIT license.
 
 >> Begin license text