dcos: updated documentation

[PRASSamin]

No description provided.

[Copilot]

Pull Request Overview

This PR adds comprehensive contribution documentation to the Prasmoid project by creating a new CONTRIBUTING.md file and linking to it from the README. The documentation provides developers with clear guidelines for contributing to the project, including setup instructions, coding standards, and pull request processes.

• Added a complete CONTRIBUTING.md file with development setup, coding standards, and contribution workflow
• Updated README.md to reference the new contribution guide

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
README.md	Added reference link to the new CONTRIBUTING.md file
CONTRIBUTING.md	Created comprehensive contribution guide with setup instructions, coding standards, and workflow documentation

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