[docs] [issue23220] IDLE: Document how Shell displays user code output

[Tal Einat]

Tal Einat <taleinat at gmail.com> added the comment:

See initial working implementation of handling \r and \b characters is the shell, PR GH-15211.

----------
nosy: +taleinat

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue23220>
_______________________________________