Co-authored-by: Zack Koppert <zkoppert@github.com>

## Changelog

Since 2.0
- Emphasizes 'community' over 'project' scope, effectively merging the Community Covenant into the Contributor Covenant
- Adds expectation about accepting responsibility and apologizing to those affected by mistakes, and learning from the experience to the list
- Adds sexual attention and advances of any kind as unacceptable behavior example
- Moves enforcement responsibilities from project maintainers to community leaders
- Adds responsibility to communicate reasons for moderation decisions when removing, editing, or rejecting contributions not aligned to the Code of Conduct
- Requires community leaders to respect privacy and security of the reporter of any incident, not just confidentiality
- Provides a template for code of conduct enforcement

Since 2.1
- Adds 'caste' and 'color' to the preamble

https://www.contributor-covenant.org/version/2/1/code_of_conduct/code_of_conduct.md