fix(rdb): add info

Author: ldecarvalho-doc

pages/managed-databases-for-postgresql-and-mysql/how-to/create-a-database.mdx

@@ -68,6 +68,11 @@ Compared to traditional database management, which requires customers to provide
 
 You can restore the data contained in a snapshot to a Database Instance. When you do so, a new Database Instance is created and billed to your account.
 
+<Message type="important">
+  Keep in mind that replication slots cannot be restored when using PostgreSQL.
+</Message>
+
+
 1. Go to the **Snapshots** tab of your Database Instance of choice.
 2. Click the <Icon name="more" /> next to the name of the snapshot.
 3. Click **Create Database Instance from snapshot**. A pop-up appears.