[kvlonge]

Why

The README describes renames and scoped macros but doesn't show either. A short recording shows them faster than the text does.

Changes

• Add the rename demo under the introduction: a model is moved and renamed, and sqb plan migrates the existing table.
• Add the scope demo under "Change it without rebuilding everything": sqb scope --as-path shows what a move would lose.
• Both GIFs are recorded from 0.119.2 with the tapes in website/recordings/ and stored in .github/demos/, referenced by absolute URL so they also render on PyPI.
• The scope tape uses a taller, wider window so the whole report fits, and lists only the relevant files.

Verification

• Recorded both demos with website/recordings/record.sh and checked the final frames.
• The public-repository scan passes.