chore: use vercel instead of netlify for the docs page (#5211)

docs/vercel.json

@@ -0,0 +1,8 @@
+{
+    "rewrites": [
+        { "source": "/docs/:match*", "destination": "/:match*" }
+    ],
+    "redirects": [
+        { "source": "/", "destination": "/docs" }
+    ]
+}