more providers

docs/README.md

@@ -5,7 +5,7 @@ This folder is the fastest handoff path for anyone adding or repairing a channel
 Start here:
 
 1. Read `architecture.md` for the server flow, request lifecycle, and core types.
-2. Read `provider-playbook.md` for the exact process to add a new provider or proxy.
+2. Read `provider-playbook.md` — its top **"Best Practices (Living)"** section is the cross-cutting rule set to internalize first, then follow the rest of the playbook for the exact process to add a new provider or proxy.
 3. Use `provider-catalog.md` to find the closest existing implementation to copy.
 4. Use `docs/hottubapp/*.html` when you need the client-facing API contract for status, videos, or uploaders.
 5. Only then touch `prompts/new-channel.md`; it assumes the docs above exist.