Add conversion table to guide

[davidhewitt]

Closes #374

Tried to keep it clear and short, but cover all relevant detail. Happy to edit any terms, wording or other suggestions you have.

[kngwyu]

Thank you!
Generally, I think we should note both class name and mypy type.
E.g., object and Any, dict and Dict[K, V], ...

In addition, it would be great if we have a review from someone with expertise in Python(e.g., @birkenfeld).

[davidhewitt]

Thank you!
Generally, I think we should note both class name and mypy type.
E.g., object and Any, dict and Dict[K, V], ...

In the interest of not duplicating things I'm going to switch to use object, dict[K, V] etc. as that's the syntax that will be official from Python 3.9 (as per PEP 585)

Thanks for the review @birkenfeld - I've pushed some changes based on your feedback 👍

[kngwyu]

Really nice 💯

[kngwyu]

@birkenfeld Thank you for your review 🙂

[davidhewitt]

Thanks, have addressed the final points of feedback.