docs: converter readme

[fmorency]

This pull request adds comprehensive documentation for the Converter contract in the Manifest Network repository. The new README.md provides an overview of the contract's functionality, architecture, and usage, making it easier for developers and users to understand and interact with the contract.

Documentation improvements:

• Added an overview section describing the Converter contract's purpose and features, including token conversion, configurable exchange rates, pause functionality, and admin controls.
• Detailed the contract architecture, outlining key components such as the rate system, denomination management, admin controls, and conversion logic.
• Provided example messages for contract instantiation, execution (convert, update config, update admin), and queries (config, admin), with JSON samples for clarity.
• Included development instructions for building and testing the contract, as well as migration and licensing information.
• Added relevant links to the repository and homepage for further reference.

[Copilot]

Pull Request Overview

This pull request adds comprehensive documentation for the Converter contract by creating a new README.md file. The documentation provides essential information about the contract's purpose, features, architecture, and usage patterns for developers and users.

• Created comprehensive README.md documentation for the Converter contract
• Documented contract functionality including token conversion, exchange rates, and admin controls
• Added example JSON messages for instantiation, execution, and queries

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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