Improved the CONTRIBUTE.md file

[tri0n0]

Improve CONTRIBUTE.md with detailed guidelines and practical examples

• Added clear sections to explain the different types of contributions, contributing workflow, and branching strategy.
• Included simple examples of commit messages and how to create pull requests.
• Added helpful links to resources for coding standards and documentation.
• Introduced a new Code of Conduct section to ensure a welcoming community.
• Enhanced the overall structure for better readability, using headings, lists, and code blocks.

[chimoneybot[bot]]

@phyleria, PR merged. Please send a chimoney.io reward to @tri0n0