#16978: merge with 3.3.

Doc/library/threading.rst

@@ -308,10 +308,10 @@ since it is impossible to detect the termination of alien threads.
 
 .. impl-detail::
 
-   Due to the :term:`Global Interpreter Lock`, in CPython only one thread
+   In CPython, due to the :term:`Global Interpreter Lock`, only one thread
    can execute Python code at once (even though certain performance-oriented
    libraries might overcome this limitation).
-   If you want your application to make better of use of the computational
+   If you want your application to make better use of the computational
    resources of multi-core machines, you are advised to use
    :mod:`multiprocessing` or :class:`concurrent.futures.ProcessPoolExecutor`.
    However, threading is still an appropriate model if you want to run