[advanced-typeshed] Confusing hint

[F-park]

Python-Type-Challenges/challenges/advanced-typeshed/solution.py

Lines 6 to 7 in c6ca3a1

	HINT: Use https://github.com/python/typeshed

Readme.md of typeshed cannot get any hint, but I cannot find any docs about _typeshed, maybe should hint with pyi.

https://github.com/python/typeshed ->
https://github.com/python/typeshed/blob/main/stdlib/_typeshed/__init__.pyi

[laike9m]

Makes sense to me. Feel free to create a PR and I'll approve