[3.6] bpo-23220: Explain how IDLE's Shell displays output (GH-10356)#10366

miss-islington wants to merge 1 commit intopython:3.6python/cpython:3.6from

miss-islington:backport-75d9d59-3.6miss-islington/cpython:backport-75d9d59-3.6Copy head branch name to clipboard