docs: update readme

README.md

@@ -22,6 +22,7 @@ There are no docs atm, so please refer to the [playground](/playground/app.vue)
 - 🚀 Custom built-in `$surrealFetch` and `useSurrealFetch` (based on `$fetch` and `useFetch` respectively).
 - 📦 Custom Database Presets, to be able to use multiple Databases on a per-function/composable basis.
 - ⚡️ Built-in support for [RPC endpoint](https://surrealdb.com/docs/surrealdb/integration/rpc) via `$surrealRPC` and `useSurrealRPC`.
+- 🏗️ Built-in Nuxt server `useSurrealRPC` composable and server-side private host/auth for private network communication with SurrealDB.
 - 💡 Each RPC method is mapped to a `useSurrealDB` exported function.
 - 🌟 Built-in support for Websocket communication with RPC methods using the `useSurrealWS` composable.