update hint for advanced-typeshed (#87)

Author: F-park

challenges/advanced-typeshed/question.py

@@ -4,7 +4,7 @@
 Annotate class `MyContainer`, which should support item access, i.e.
 using `[x]` to get, set, and delete an item.
 
-HINT: Use https://github.com/python/typeshed
+HINT: Use https://github.com/python/typeshed/blob/main/stdlib/_typeshed/__init__.pyi
 """
 
 

challenges/advanced-typeshed/solution.py

@@ -4,7 +4,7 @@
 Annotate class `MyContainer`, which should support item access, i.e.
 using `[x]` to get, set, and delete an item.
 
-HINT: Use https://github.com/python/typeshed
+HINT: Use https://github.com/python/typeshed/blob/main/stdlib/_typeshed/__init__.pyi
 """
 
 from _typeshed import SupportsItemAccess