Create docs/examples.md as the central entry point for all 5 turnkey
docker-compose scenarios with a decision matrix, per-example summaries,
and contextual migration guide links. Update quickstart.md to bridge
from demo to real deployment. Consolidate README docs table (10 rows
from 13). Fix Vault PKI "(planned)" in cert-manager guide.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>