Merge pull request #523 from KooshaPari/chore/add-code-of-conduct

chore: add CODE_OF_CONDUCT.md

Author: KooshaPari

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+This project adopts the [Contributor Covenant v2.1](https://www.contributor-covenant.org/version/2/1/code_of_conduct/).
+
+Report concerns privately to security contact (see SECURITY.md) or open a GitHub Security Advisory.