What would you like to be added:
Add Karmada starting examples with killercoda, including a CLI installation example and script installation example, both containing installation and deploying workload to multi-clusters steps.
Tasks & deadline:
Implement CLI installation example, with deploying workload to multi-clusters steps.
[x] Implement CLI installation example (deadline: March 26, 2023)
[x] Using CLI to implement the steps of deploying workloads to multi-clusters (deadline: March 29, 2023)
Implement deploy workloads example, with deploying workload to multi-clusters steps.
[x] Implement two deploy workloads examples (deadline: April 2, 2023)
[x] Using scripts to implement the steps of deploying workloads to multi-clusters (deadline: April 6, 2023)
Update Karmada official website docs, indicating users can quickly try Karmada with killercoda.
[x] Update Karmada official website docs (deadline: April 9, 2023)
In response to [this](https://github.com/karmada-io/playground/issues/1#issuecomment-1541154079):
>All is finished.
>/close
Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.
What would you like to be added: Add Karmada starting examples with killercoda, including a CLI installation example and script installation example, both containing installation and deploying workload to multi-clusters steps.
Tasks & deadline: