Create CONTRIBUTING.md file for new contributors

[TrivCodez]

Description

Create a comprehensive CONTRIBUTING.md file to help beginners understand how to contribute to the project.

Task

• Create CONTRIBUTING.md in the root directory
• Include sections:
  • How to set up development environment
  • Code style guidelines
  • How to test changes
  • PR process
  • Issue reporting guidelines
  • Getting help

Why this is good for beginners

• Improves project documentation
• Helps future contributors
• Markdown writing practice
• Understanding open source contribution flow

Content requirements

• Clear step-by-step setup instructions
• Python virtual environment setup
• Discord bot token setup
• Code style (type hints, naming conventions)
• How to test commands
• PR checklist

Files to modify

• Create: CONTRIBUTING.md

Acceptance Criteria

• CONTRIBUTING.md created in root directory
• Includes environment setup steps
• Explains testing process
• Describes PR workflow
• Mentions code style requirements
• Links to relevant resources (discord.py docs, etc.)
• Written in clear, beginner-friendly language