address review: suggest PyComplex_AsCComplex/PyComplex_FromCComplex

Author: skirpichev

Doc/c-api/complex.rst

@@ -123,6 +123,9 @@ Complex Numbers as Python Objects
       The complex number value, using the C :c:type:`Py_complex` representation.
 
       .. deprecated-removed:: next 3.17
+         Use instead :c:func:`PyComplex_AsCComplex` and
+         :c:func:`PyComplex_FromCComplex` to access/set a Python complex
+         number, using the C :c:type:`Py_complex` representation.
 
 
 .. c:var:: PyTypeObject PyComplex_Type