diff --git a/contributing.md b/contributing.md
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+# Contribution to Delphi SDK for KolibriOS
+
+If you want to contribute SDK, you should follow the rules:
+* Use English or abbreviated Enlgish identifiers.
+* Format your sources regarding [Object Pascal Style Guide](http://edn.embarcadero.com/article/10280) from Embarcadero.
+* Suggest a pull request on GitHub.
+* Provide your real name for copyright, if you want. Otherwise your nickname will be used.
+
+Your sources will be included to SDK under [BSD license](license.md). Feel free to use [our forum](http://forum.cantorsys.com/viewforum.php?id=12) and ask any questions in English or Russian.
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diff --git a/license.md b/license.md
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+++ b/license.md
@@ -1,5 +1,7 @@
 Copyright © 2017-2019 0CodErr
+
 Copyright © 2020 0CodErr, Nikolay Burshtyn (aka amber8706), Vladislav Javadov (aka Freeman)
+
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: