Update docs

Author: mlejva

Diff for: apps/web/src/app/(docs)/docs/sandbox/persistence/page.mdx

@@ -2,6 +2,7 @@
 
 <Note>
 Sandbox persistence is currently in beta:
+1. [Reach out to us](/docs/support) to get access to the beta.
 1. You need to install the [beta version of the SDKs](#installing-the-beta-version-of-the-sdks).
 1. Consider [some limitations](#limitations-while-in-beta).
 1. The persistence is free for all users during the beta.