Minor improvements to typing docs (#104465)

Author: JelleZijlstra

Doc/library/typing.rst

@@ -19,7 +19,7 @@
 
 This module provides runtime support for type hints. The most fundamental
 support consists of the types :data:`Any`, :data:`Union`, :data:`Callable`,
-:class:`TypeVar`, and :class:`Generic`. For a full specification, please see
+:class:`TypeVar`, and :class:`Generic`. For a specification, please see
 :pep:`484`. For a simplified introduction to type hints, see :pep:`483`.
 
 
@@ -592,7 +592,7 @@ The module defines the following classes, functions and decorators.
    when the checked program targets Python 3.9 or newer.
 
    The deprecated types will be removed from the :mod:`typing` module
-   in the first Python version released 5 years after the release of Python 3.9.0.
+   no sooner than the first Python version released 5 years after the release of Python 3.9.0.
    See details in :pep:`585`—*Type Hinting Generics In Standard Collections*.
 
 
@@ -1291,6 +1291,8 @@ These are not used in annotations. They are building blocks for creating generic
        U = TypeVar('U', bound=str|bytes)  # Can be any subtype of the union str|bytes
        V = TypeVar('V', bound=SupportsAbs)  # Can be anything with an __abs__ method
 
+.. _typing-constrained-typevar:
+
     Using a *constrained* type variable, however, means that the ``TypeVar``
     can only ever be solved as being exactly one of the constraints given::
 
@@ -1550,7 +1552,7 @@ These are not used in annotations. They are building blocks for creating generic
 
 .. data:: AnyStr
 
-   ``AnyStr`` is a :class:`constrained type variable <TypeVar>` defined as
+   ``AnyStr`` is a :ref:`constrained type variable <typing-constrained-typevar>` defined as
    ``AnyStr = TypeVar('AnyStr', str, bytes)``.
 
    It is meant to be used for functions that may accept any kind of string
@@ -2112,7 +2114,7 @@ Other concrete types
       Python 2 is no longer supported, and most type checkers also no longer
       support type checking Python 2 code. Removal of the alias is not
       currently planned, but users are encouraged to use
-      :class:`str` instead of ``Text`` wherever possible.
+      :class:`str` instead of ``Text``.
 
 Abstract Base Classes
 ---------------------