beeware/toga-chart

AI Summary: Convert the project's README files (main and examples) from reStructuredText (.rst) to GitHub-flavored Markdown (.md) using a tool like pandoc, ensuring the converted files render correctly and deleting the original .rst files.

AI Summary: The task involves migrating a Toga-based Matplotlib charting widget's linting and formatting from Flake8/isort/Black to Ruff. This includes updating configuration files (pyproject.toml, .pre-commit-config.yaml, tox.ini), running pre-commit hooks, creating an ignore list for Ruff rules, and making minimal code adjustments to address any conflicts. Subsequent PRs will address the remaining linting errors in a phased approach, grouped by rule category.