Update Include/internal/pycore_pymem.h

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

Author: tom-pytel

Include/internal/pycore_pymem.h

@@ -88,6 +88,7 @@ extern wchar_t *_PyMem_DefaultRawWcsdup(const wchar_t *str);
 extern int _PyMem_DebugEnabled(void);
 
 // Enqueue a pointer to be freed possibly after some delay.
+# Exported for 'array' shared extension.
 PyAPI_FUNC(void) _PyMem_FreeDelayed(void *ptr, size_t size);
 
 // Periodically process delayed free requests.