Update Doc/library/typing.rst

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

Author: aisk

Doc/library/typing.rst

@@ -2592,7 +2592,7 @@ types.
 .. function:: TypedDict
 
    Special construct to add type hints to a dictionary.
-   At runtime it is a plain :class:`dict`.
+   At runtime ":class:`!TypedDict` instances" are simply :class:`dicts <dict>`.
 
    ``TypedDict`` declares a dictionary type that expects all of its
    instances to have a certain set of keys, where each key is