Reviews README: request telemetry (telemetry_samples, one-minute aggregates, 14 days) (#63)

ddiff --git a/README.md b/README.md
iindex 5c63544..397c63c 100644
---- a/README.md
++++ b/README.md
@@@ -126,6 +126,15 @@ served at `/<key>.txt`; unset, nothing is sent, and drafts and noindex pages nev
  **Operations.** `/api/health`, `/api/ready` (DB required; Network key, Sources, Events relay, webhook
  secret, Community and editors reported), `/release.json`, `/metrics` (outbox and backlog gauges).
  
++**Telemetry.** Each HTTP request is aggregated by route template, method and status class, never by raw
++URL; `/shared` files, static assets, health, readiness and `/metrics` are not counted. Once a minute one
++`http.request` sample per key, plus the active-requests, p95 latency and event-loop-lag gauges, is
++written to this service's own `telemetry_samples` table (openvibe-sdk 0.46 telemetry, the
++`platform.telemetry-sample@1` shape); rows older than 14 days are deleted daily. `start()` in
++`server/index.js` builds the collector and, with the workers on (production), flushes it every minute
++and runs the 14-day retention; `server/app.js` mounts its middleware; the table is created by migration
++`migrations/0003_telemetry.sql`.
++
  ## Routes
  
  | Path | What |