GH-110383: Improve Tutorial for Input Ouput

[blaisep]

In order to get GH-118970 from @uatach merged quickly, I updated the PR with some formatting changes suggested by @encukou

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📚 Documentation preview 📚: https://cpython-previews--119230.org.readthedocs.build/

• Issue: gh-110383

[ghost]

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[blaisep]

@encukou Nice adjustment, thank you.

[miss-islington-app[bot]]

Thanks @blaisep for the PR, and @encukou for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12, 3.13. 🐍🍒⛏🤖

[bedevere-app[bot]]

GH-119326 is a backport of this pull request to the 3.13 branch.

[bedevere-app[bot]]

GH-119327 is a backport of this pull request to the 3.12 branch.