Documentation edits made through Mintlify web editor

Author: benitav

installation/authentication-setup/supabase-auth.mdx

@@ -62,4 +62,6 @@ To rotate the secret, generate a new secret in the your Supabase project's API S
   ![](/images/authentication/supabase-jwt-secret.png)
 </Frame>
 
+## Sync Rules
+
 The Supabase user UUID will be available as `request.user_id()` in [Sync Rules](/usage/sync-rules). To use a different identifier as the user ID in sync rules (for example user email), use [Custom authentication](/installation/authentication-setup/custom).