Update Launch page.md (#53)

Fix link to old mariadb portal with current portal.

docs/Portal features/Launch page.md

@@ -1,6 +1,6 @@
 # Launch page
 
-Launch page can be accessed at [Launch](https://skysql.mariadb.com/launch-service)
+Launch page can be accessed at [Launch](https://app.skysql.com/launch-service)
 
 ![launch](launch.png)
 
@@ -31,4 +31,4 @@ To launch a SkySQL service from the Portal:
 
 After initiating service launch, the service will be shown on the [Portal](https://app.skysql.com/dashboard) Dashboard.
 
-A [notification](./Notifications.md) will be sent at time of service launch initiation and when service launch completes.
+A [notification](./Notifications.md) will be sent at time of service launch initiation and when service launch completes.