added code of conduct

Author: jdarcyryan

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+## Our Pledge
+
+We are committed to providing a welcoming and respectful environment for everyone, regardless of experience level, background, identity, or personal characteristics.
+
+## Our Standards
+
+**Expected behaviour:**
+
+- Being respectful and considerate in communication
+- Providing and accepting constructive feedback graciously
+- Focusing on what is best for the project and community
+- Showing empathy towards other contributors
+
+**Unacceptable behaviour:**
+
+- Harassment, insults, or derogatory comments
+- Personal or political attacks
+- Publishing others' private information without permission
+- Any conduct that would be considered inappropriate in a professional setting
+
+## Scope
+
+This Code of Conduct applies to all project spaces, including issues, pull requests, discussions, and any public representation of the project.
+
+## Enforcement
+
+Instances of unacceptable behaviour may be reported by contacting the project maintainer. All reports will be reviewed and addressed appropriately. The maintainer reserves the right to remove, edit, or reject contributions that violate this Code of Conduct, and to temporarily or permanently ban contributors for behaviour deemed inappropriate.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org), version 2.1.