add docs

Author: Gromov Evgeny

CODE_OF_CONDUCT.md

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+# Code Of Conduct
+
+You can find Code of conduct and other legal documents in Russian and English languages at [https://www.megafon.ru/opensource/](https://www.megafon.ru/opensource/).

CONTRIBUTING.md

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+## Package publishing
+
+There are multiple commands to make a release:
+
+```bash
+yarn release --patch
+yarn release --minor
+yarn release --major
+```
+
+After executing, a new tag will be created. When it's pushed to remote repository,
+Github Actions will publish new package to npm automatically.
+
+## Legal Information
+
+When contributing to the project you adopt the `Rules for use of intellectual property in simplified manner` and `Rules for participation in open source projects of MegaFon PJSC` that are available at [https://www.megafon.ru/opensource/](https://www.megafon.ru/opensource/) in Russian and English languages.

LICENSE

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+MIT License
+
+Copyright (c) 2021 PJSC MegaFon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -66,3 +66,7 @@ chunk_size_kilobytes{customLabel="custom-value",bundle="mainPageBundle",chunk="m
 chunk_size_kilobytes{customLabel="custom-value",bundle="mainPageBundle",chunk="chunkTwo"} 0.09
 chunk_size_kilobytes{customLabel="custom-value",bundle="mainPageBundle",chunk="chunkOne"} 0.09
 ```
+
+## Contributing
+
+Follow [CONTRIBUTING.md](CONTRIBUTING.md) and [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md).

SECURITY.md

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+# Security
+
+To report a vulnerability please send the details about it to [[email protected]](mailto:[email protected]).