ruff

a6ebbf21 - Fix documented examples for `unnecessary-subscript-reversal` (#7774)

Fix documented examples for `unnecessary-subscript-reversal` (#7774) ## Summary Two of the three listed examples were wrong: one was semantically incorrect, another was _correct_ but not actually within the scope of the rule. Good motivation for us to start linting documentation examples :) Closes https://github.com/astral-sh/ruff/issues/7773.