Small change for RN index

Author: MariaShaposhnikova

content/en/docs/releasenotes/studio-pro/_index.md

@@ -13,6 +13,7 @@ aliases:
 
 These are the [Mendix Studio Pro](/refguide/) major version release notes:
 
+* [11](/releasenotes/studio-pro/11/) (Beta)
 * [10](/releasenotes/studio-pro/10/)
 * [9](/releasenotes/studio-pro/9/)
 * [8](/releasenotes/studio-pro/8/)