Change Launchpad creation command

The command doesn't work, the output is:
You need to deploy the launchpad from the rover by running:
 rover -lz /tf/caf/landingzones/launchpad -a apply -launchpad -env sandpit

I've taken the command from https://github.com/Azure/caf-terraform-landingzones/tree/master/landingzones/caf_launchpad

documentation/getting_started/getting_started.md

@@ -60,7 +60,8 @@ On the first run, you need to use the launchpad to create the foundations for Te
 You can find more information on the launchpad settings [Here](../../landingzones/caf_launchpad)
 
 ```bash
-rover -launchpad -lz /tf/caf/landingzones/caf_launchpad \
+rover -lz /tf/caf/landingzones/caf_launchpad \
+-launchpad \
 -var-folder /tf/caf/landingzones/caf_launchpad/scenario/100 \
 -a apply
 ```
@@ -126,4 +127,4 @@ You can also purge Docker cache running the following command:
 docker system prune -a
 ```
 
-Happy deployment with Azure landing zones, let us know your feedback and how you need it to evolve!
+Happy deployment with Azure landing zones, let us know your feedback and how you need it to evolve!