Adding one line code for installation of kubectl

Hi There, When I follow these instructions, I could not install correctly kubectl.  After kubectl file downloading, That file needs to be given execution permission.
I want to contribute for that.  Best regards.

Author: yilmazsen

content/en/docs/tasks/tools/install-kubectl-macos.md

@@ -31,6 +31,7 @@ The following methods exist for installing kubectl on macOS:
    {{< tabs name="download_binary_macos" >}}
    {{< tab name="Intel" codelang="bash" >}}
    curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/darwin/amd64/kubectl"
+   chmod +x kubectl
    {{< /tab >}}
    {{< tab name="Apple Silicon" codelang="bash" >}}
    curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/darwin/arm64/kubectl"