address feedback on apply_ufunc tutorial

- [ ] multiple input core dimensions
- [x] multiple outputs
- [x] Passing args, kwargs

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from @robbibt

<img width="611" alt="image" src="https://user-images.githubusercontent.com/2448579/216471762-e6a509d4-f055-4890-bcf9-b33ed842d172.png">
