docs: fix reasoning shortcut in README

[vitor-hbr]

Hi! Tiny README typo fix.

The README currently says to press tab to cycle reasoning levels, but the actual shortcut is shift+tab.

Thanks for sharing this setup, and everything you do.

Note

Fix reasoning shortcut key in README

Corrects the keyboard shortcut for cycling reasoning levels in README.md from tab to shift+tab.

^{Macroscope summarized ca9680c.}

Changes

• Updated README.md instruction: corrected the keyboard shortcut for cycling reasoning levels from tab to shift+tab in the "what u actually should do" section

[coderabbitai]

📝 Walkthrough

Walkthrough

The PR updates a keyboard shortcut instruction in the README. The /login flow guidance for cycling reasoning levels is corrected from tab to shift+tab.

Changes

Keyboard Shortcut Documentation

Layer / File(s)	Summary
Documentation Update README.md	Shortcut hint for cycling reasoning levels during /login is corrected from tab to shift+tab.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~1 minute

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'docs: fix reasoning shortcut in README' directly and specifically describes the main change: correcting a keyboard shortcut instruction in the README documentation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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