gh-77753: Add example for values that compare equal in stdtypes (#98497)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Author: slateny

Doc/library/stdtypes.rst

@@ -4370,11 +4370,9 @@ type, the :dfn:`dictionary`.  (For other containers see the built-in
 A dictionary's keys are *almost* arbitrary values.  Values that are not
 :term:`hashable`, that is, values containing lists, dictionaries or other
 mutable types (that are compared by value rather than by object identity) may
-not be used as keys.  Numeric types used for keys obey the normal rules for
-numeric comparison: if two numbers compare equal (such as ``1`` and ``1.0``)
-then they can be used interchangeably to index the same dictionary entry.  (Note
-however, that since computers store floating-point numbers as approximations it
-is usually unwise to use them as dictionary keys.)
+not be used as keys.
+Values that compare equal (such as ``1``, ``1.0``, and ``True``)
+can be used interchangeably to index the same dictionary entry.
 
 .. class:: dict(**kwargs)
            dict(mapping, **kwargs)