docs: update readme cmd 'attach' to 'debug'

[ruyadorno]

What

Checklist

• Tests pass (npm test)
• Lint passes (npm run lint)
• Docs updated (if behavior changed)
• Security audit passes (bin/security-audit.sh --deep) — if touching security code

[greptile-apps]

Greptile Summary

This PR updates the README to replace the command sudo baudbot attach with sudo baudbot debug in the "Connect/talk to the control agent" section.

Confidence Score: 5/5

Safe to merge — documentation-only change with no code impact.

Single-line README update renaming one command; no logic, tests, or configuration affected.

No files require special attention.

Important Files Changed

Filename	Overview
README.md	Single-line docs update: renames the attach subcommand to debug in the usage example

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[User runs baudbot] --> B{Subcommand}
    B -->|update| C[sudo baudbot update]
    B -->|debug| D[sudo baudbot debug]
    B -->|install --pi-version| E[sudo baudbot install ...]

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_{Reviews (1): Last reviewed commit: "docs: update readme cmd 'attach' to 'deb..." | Re-trigger Greptile}