add note now sql storage billing

Author: vy-ton

src/content/partials/durable-objects/durable-objects-pricing.mdx

@@ -52,6 +52,10 @@ The [Durable Objects Storage API](/durable-objects/api/storage-api) is only acce
 { props.product === "durable-objects" && <><AnchorHeading title="SQLite storage backend" depth={3}/></> }
 { props.product === "workers" && <><AnchorHeading title="SQLite storage backend" depth={4}/></> }
 
+:::note
+Storage billing is not yet enabled for Durable Object classes using SQLite storage backend. SQLite-backed Durable Objects will incur [charges for requests and duration](/durable-objects/platform/pricing/#compute-billing). Storage billing for Durable Objects using SQLite storage backend will be enabled at a later date with advance notice with the following pricing.
+:::
+
 |                               | Workers Free plan         | Workers Paid plan                                         |
 | ----------------------------- | ------------------------- | --------------------------------------------------------- |
 | Rows reads <sup>1,2</sup>     | 5 million / day           | First 25 billion / month included + $0.001 / million rows |