Ospeak

- README now notes that this depends on `ffmpeg`, can't be run in the same environment as [LLM](https://llm.datasette.io/), and currently supports Python 3.11 but not Python 3.12.
- Improvements to audio quality when exporting as MP3. Thanks, [Mikolaj Holysz](https://github.com/mikolysz). [#7](https://github.com/simonw/ospeak/pull/7)
- New `-m/--model` option for switching the model from the default `tts-1` to `tts-1-hd` or other models. Thanks, [Loren McIntyre](https://github.com/mcint). [#5](https://github.com/simonw/ospeak/pull/5)

- New `-x/--speed` option for controlling the speed of the produced voice - from 0.25 to 4 (4x normal), default is 1.0. Try it like this: `ospeak "hello there this is faster" --speed 2`. [2](https://github.com/simonw/ospeak/issues/2)

- Initial release. Run `ospeak --token='OpenAI API token' 'say hello'` to speak text using the [OpenAI Text to speech](https://platform.openai.com/docs/guides/text-to-speech) API. [#1](https://github.com/simonw/ospeak/issues/1)