Contributing guidelines

[SrNightmare09]

Adds a separate guideline for contributing, allowing the README to only be focused on the product.

Closes: #445

Description of Changes

• New CONTRIBUTING.md file with information on contributing guidelines and how to open a pull request
• Removal of contribution guidelines from README.md to make it focused on the product.

Checklist:

• My code adheres to the established style guidelines of this project.
• I have conducted a self-review of my code.
• I have included comments in areas that may be difficult to understand.
• I have made corresponding updates to the project documentation.
• My changes have not introduced any new warnings.

Screenshots

Original	Updated

[vercel]

Someone is attempting to deploy a commit to a Personal Account owned by @AKD-01 on Vercel.

@AKD-01 first needs to authorize it.