Prep docs repo for archive

.github/workflows/test.yml

@@ -35,4 +35,5 @@ jobs:
       - run: bun run lint-styles
       - run: bun run lint-scripts
       - run: bun run test
-      - run: bun run test-vercel
+      # deploy-vercel.yml removed during archive
+      # - run: bun run test-vercel

README.md

@@ -1,5 +1,9 @@
 # Metabase docs site
 
+> [!IMPORTANT]
+> **This repository is archived.** The docs site now lives in [`apps/docs`](https://github.com/metabase/metabase.github.io/tree/master/apps/docs) in the [metabase/metabase.github.io](https://github.com/metabase/metabase.github.io) monorepo.
+> The docs content itself is still in [metabase/metabase](https://github.com/metabase/metabase/tree/master/docs).
+
 An Astro site that renders the Metabase docs.
 
 ## Quick start