bpo-35081: add NEWS entry for new Include/internal/pycore_*.h files (GH-10666)

diff --git a/Misc/NEWS.d/next/C API/2018-11-22-18-15-46.bpo-35081.FdK9mV.rst b/Misc/NEWS.d/next/C API/2018-11-22-18-15-46.bpo-35081.FdK9mV.rst
new file mode 100644 (file)
index 0000000..d1de852
--- /dev/null
+++ b/Misc/NEWS.d/next/C API/2018-11-22-18-15-46.bpo-35081.FdK9mV.rst
@@ -0,0 +1,2 @@
+Internal APIs surrounded by ``#ifdef Py_BUILD_CORE`` have been moved from
+``Include/*.h`` headers to new header files ``Include/internal/pycore_*.h``.