#13494: merge with 3.2.

Doc/library/stdtypes.rst

@@ -2772,9 +2772,9 @@ Boolean values are the two constant objects ``False`` and ``True``.  They are
 used to represent truth values (although other values can also be considered
 false or true).  In numeric contexts (for example when used as the argument to
 an arithmetic operator), they behave like the integers 0 and 1, respectively.
-The built-in function :func:`bool` can be used to cast any value to a Boolean,
-if the value can be interpreted as a truth value (see section Truth Value
-Testing above).
+The built-in function :func:`bool` can be used to convert any value to a
+Boolean, if the value can be interpreted as a truth value (see section
+:ref:`truth` above).
 
 .. index::
    single: False