Update README (#9)

Author: trandromeda

README.md

@@ -8,6 +8,7 @@ Ready-to-use templates for **Nakama** game development. Download, play, and copy
 
 - [Leaderboards](./UnityNakamaLeaderboards/) - Weekly and global rankings with real-time record updates
 - [Friends](./UnityNakamaFriends/) - Manage friend lists and requests, block and unblock players.
+- [Cloud Save](./UnityNakamaCloudSave/) - Save player data in the cloud that syncs between devices.
 
 ## Documentation