Add credits to What's New in Python 3.8 (GH-13776)

* Credit myself and others.
* Complete asyncio changes.

Author: vstinner

Doc/whatsnew/3.8.rst

@@ -341,6 +341,15 @@ asyncio
 -------
 
 On Windows, the default event loop is now :class:`~asyncio.ProactorEventLoop`.
+(Contributed by Victor Stinner in :issue:`34687`.)
+
+:class:`~asyncio.ProactorEventLoop` now also supports UDP.
+(Contributed by Adam Meily and Andrew Svetlov in :issue:`29883`.)
+
+:class:`~asyncio.ProactorEventLoop` can now be interrupted by
+:exc:`KeyboardInterrupt` ("CTRL+C").
+(Contributed by Vladimir Matveev in :issue:`23057`.)
+
 
 builtins
 --------
@@ -672,6 +681,7 @@ how "unraisable exceptions" are handled. It is called when an exception has
 occurred but there is no way for Python to handle it. For example, when a
 destructor raises an exception or during garbage collection
 (:func:`gc.collect`).
+(Contributed by Victor Stinner in :issue:`36829`.)
 
 
 tarfile
@@ -740,7 +750,7 @@ unicodedata
 unittest
 --------
 
-* XXX Added :class:`AsyncMock` to support an asynchronous version of :class:`Mock`.
+* Added :class:`AsyncMock` to support an asynchronous version of :class:`Mock`.
   Appropriate new assert functions for testing have been added as well.
   (Contributed by Lisa Roach in :issue:`26467`).
 
@@ -801,6 +811,8 @@ Optimizations
     are not set;
   * the *executable* path contains a directory.
 
+  (Contributed by Joannah Nanjekye and Victor Stinner in :issue:`35537`.)
+
 * :func:`shutil.copyfile`, :func:`shutil.copy`, :func:`shutil.copy2`,
   :func:`shutil.copytree` and :func:`shutil.move` use platform-specific
   "fast-copy" syscalls on Linux and macOS in order to copy the file
@@ -1006,10 +1018,12 @@ The following features and APIs have been removed from Python 3.8:
 
 * The function :func:`platform.popen` has been removed, it was deprecated since
   Python 3.3: use :func:`os.popen` instead.
+  (Contributed by Victor Stinner in :issue:`35345`.)
 
 * The function :func:`time.clock` has been removed, it was deprecated since Python
   3.3: use :func:`time.perf_counter` or :func:`time.process_time` instead, depending
   on your requirements, to have a well defined behavior.
+  (Contributed by Matthias Bussonnier in :issue:`36895`.)
 
 * The ``pyvenv`` script has been removed in favor of ``python3.8 -m venv``
   to help eliminate confusion as to what Python interpreter the ``pyvenv``
@@ -1100,12 +1114,14 @@ Changes in the Python API
   Emulation, Popen constructor using :func:`os.posix_spawn` no longer raise an
   exception on errors like missing program, but the child process fails with a
   non-zero :attr:`~Popen.returncode`.
+  (Contributed by Joannah Nanjekye and Victor Stinner in :issue:`35537`.)
 
 * The :meth:`imap.IMAP4.logout` method no longer ignores silently arbitrary
   exceptions.
 
 * The function :func:`platform.popen` has been removed, it was deprecated since
   Python 3.3: use :func:`os.popen` instead.
+  (Contributed by Victor Stinner in :issue:`35345`.)
 
 * The :func:`statistics.mode` function no longer raises an exception
   when given multimodal data.  Instead, it returns the first mode
@@ -1232,6 +1248,7 @@ Changes in the C API
   ``RTLD_LOCAL``, it was already not possible to load C extensions which
   were not linked to ``libpython``, like C extensions of the standard
   library built by the ``*shared*`` section of ``Modules/Setup``.
+  (Contributed by Victor Stinner in :issue:`21536`.)
 
 * Use of ``#`` variants of formats in parsing or building value (e.g.
   :c:func:`PyArg_ParseTuple`, :c:func:`Py_BuildValue`, :c:func:`PyObject_CallFunction`,