GH-109975: Copyedit 3.13 What's New: New Features (#122990)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>

Author: 3 people

Doc/tutorial/appendix.rst

@@ -14,8 +14,8 @@ There are two variants of the interactive :term:`REPL`.  The classic
 basic interpreter is supported on all platforms with minimal line
 control capabilities.
 
-On Unix-like systems (e.g. Linux or macOS) with :mod:`curses` and
-:mod:`readline` support, a new interactive shell is used by default.
+On Windows, or Unix-like systems with :mod:`curses` support,
+a new interactive shell is used by default.
 This one supports color, multiline editing, history browsing, and
 paste mode.  To disable color, see :ref:`using-on-controlling-color` for
 details.  Function keys provide some additional functionality.