Macos-notifications

What's Changed
* Add sound param by michelcrypt4d4mus in https://github.com/Jorricks/macos-notifications/pull/25

New Contributors
* michelcrypt4d4mus made their first contribution in https://github.com/Jorricks/macos-notifications/pull/25

**Full Changelog**: https://github.com/Jorricks/macos-notifications/compare/0.2.0...0.2.1

Changes:
✨ 14 Implement notification cancellation
📝 Update documentation

Major thanks to basilevs for his contribution!

📌 Bump requirements

📝 Python example was missing __name__ filter

- 🐛 Multiple notifications in the same thread gave exceptions. Now you can send as many notifications as you want.

📝 Out-dated python example on main page