Updated LICENSE and CONTRIBUTING.md

Author: alex268

CONTRIBUTING.md

@@ -0,0 +1,21 @@
+# Notice to external contributors
+
+## Common
+
+YDB is a free and open project and we appreciate to receive contributions from our community.
+
+## Contributing code changes
+
+If you would like to contribute a new feature or a bug fix, please discuss your idea first on the GitHub issue.
+If there is no issue for your idea, please open one. It may be that somebody is already working on it,
+or that there are some complex obstacles that you should know about before starting the implementation.
+Usually there are several ways to fix a problem and it is important to find the right approach before spending time on a PR
+that cannot be merged.
+
+## Provide a contribution
+
+To make a contribution you should submit a pull request. There will probably be discussion about the pull request and, if any changes are needed, we would love to work with you to get your pull request merged.
+
+## Other questions
+
+If you have any questions, please mail us at [email protected].

LICENSE

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-Copyright 2022 YANDEX LLC
-                               Apache License
+                                 Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/
 
@@ -187,7 +186,7 @@ Copyright 2022 YANDEX LLC
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-Copyright 2022 YANDEX LLC
+   Copyright 2022-2024 YANDEX LLC
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.