docs: add CODE_OF_CONDUCT.md and initial CONTRIBUTING.md

[avatGit]

Description

This PR addresses the requirement for a project Code of Conduct and contributing instructions.

Changes:

Added CODE_OF_CONDUCT.md: Implemented the Contributor Covenant v2.1 to ensure a welcoming environment.

Created CONTRIBUTING.md: Since this file was missing but required by the issue, I established a baseline for community contributions and linked the Code of Conduct.

Contact Information: Added hello@rjsadow.com as the official enforcement contact in both files.

Closes #46

[rjsadow]

The Frontend Security Scan and Link Check failures are expected. I'm working on getting those fixed in #54. Please take a look at the Markdown Lint job though. I should be getting the first two fixed today so on your next commit, please rebase and the workflow should fully pass.

[avatGit]

The Frontend Security Scan and Link Check failures are expected. I'm working on getting those fixed in #54. Please take a look at the Markdown Lint job though. I should be getting the first two fixed today so on your next commit, please rebase and the workflow should fully pass

I've fixed the Markdown Lint errors for both files. I'll rebase as soon as you've merged the fixes from #54. Let me know!

[rjsadow]

#54 is in. Feel free to rebase. Otherwise, I'll merge when the other checks pass.

[rjsadow]

Thanks @avatGit !!