fix(quick start)-You do not need to clone the repository and directly…

… deliver the installation file (#1210)

Signed-off-by: Zechun Chen <zechun.chen@daocloud.io>

docs/quickstart.md

@@ -42,25 +42,19 @@ master-2              Ready    master          1h     v1.17.1
 
 Our recommended quickstart method to deploy Multus is to deploy using a Daemonset (a method of running pods on each nodes in your cluster), this spins up pods which install a Multus binary and configure Multus for usage.
 
-Firstly, clone this GitHub repository. 
-
-```
-git clone https://github.com/k8snetworkplumbingwg/multus-cni.git && cd multus-cni
-```
-
 We'll apply a YAML file with `kubectl` from this repo, which installs the Multus components.
 
 Recommended installation:
 
 ```
-cat ./deployments/multus-daemonset-thick.yml | kubectl apply -f -
+kubectl apply -f https://raw.githubusercontent.com/k8snetworkplumbingwg/multus-cni/master/deployments/multus-daemonset-thick.yml
 ```
 See the [thick plugin docs](./thick-plugin.md) for more information about this architecture.
 
 Alternatively, you may install the thin-plugin with:
 
 ```
-cat ./deployments/multus-daemonset.yml | kubectl apply -f -
+kubectl apply -f https://raw.githubusercontent.com/k8snetworkplumbingwg/multus-cni/master/deployments/multus-daemonset.yml
 ```
 
 ### What the Multus daemonset does