Update README.md

Co-authored-by: Hongcai Ren <renhongcai@huawei.com>
Signed-off-by: warjiang <1096409085@qq.com>

README.md

@@ -9,8 +9,10 @@ Karmada Dashboard is a general-purpose, web-based control panel for Karmada whic
 ## 🚀QuickStart
 
 ### Prerequisites
-- Multi kubernetes clusters[optional]: in case of testing, you can start kubernetes clusters with kind. If you already had kubernetes clusters in production, you can skip this step.
-- Control-plane of Karmada[optional]:  in case of testing, you can follow this [tutorial](https://github.com/karmada-io/karmada/blob/master/README.md#install-karmada-control-plane) to set up a minimal environment with Karmada. If you are already installed Karmada, also this step can be skipped.
+You need to have a Karmada installed on Kubernetes(aka. `host cluster`) and the [karmadactl](https://karmada.io/docs/installation/install-cli-tools#install-karmadactl) or
+kubectl command-line tool must be configured to communicate with your host cluster and Karmada control plane.
+
+If you don't already have the Karmada, you can launch one by following this [tutorial](https://karmada.io/docs/installation/#install-karmada-for-development-environment).
 
 
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