PEP 674: Sam's endorsment for the nogil section (#2175)

pep-0674.rst

@@ -62,7 +62,7 @@ implementations can make their C API implementation less efficient.
 CPython nogil fork
 ------------------
 
-Sam Gross forked Python 3.8 to remove the GIL: the `nogil branch
+Sam Gross forked Python 3.9 to remove the GIL: the `nogil branch
 <https://github.com/colesbury/nogil/>`_. This fork has no
 ``PyObject.ob_refcnt`` member, but a more elaborated implementation for
 reference counting, and so the ``Py_REFCNT(obj) = new_refcnt;`` code
@@ -75,6 +75,8 @@ a Python optimization blocked indirectly by the C API.
 This issue was already fixed in Python 3.10: the ``Py_REFCNT()`` macro
 has been already modified to disallow using it as a l-value.
 
+These statements are endorsed by Sam Gross (nogil developer).
+
 HPy project
 -----------