Install kubeadm, kubelet through dl.k8s.io and separate out kubectl installation

Update content/en/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md

Co-authored-by: Jihoon Seo <[email protected]>

Author: Rishit-dagli

content/en/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md

@@ -245,15 +245,17 @@ Install `kubeadm`, `kubelet`, `kubectl` and add a `kubelet` systemd service:
 RELEASE="$(curl -sSL https://dl.k8s.io/release/stable.txt)"
 ARCH="amd64"
 cd $DOWNLOAD_DIR
-sudo curl -L --remote-name-all https://storage.googleapis.com/kubernetes-release/release/${RELEASE}/bin/linux/${ARCH}/{kubeadm,kubelet,kubectl}
-sudo chmod +x {kubeadm,kubelet,kubectl}
+sudo curl -L --remote-name-all https://dl.k8s.io/release/${RELEASE}/bin/linux/${ARCH}/{kubeadm,kubelet}
+sudo chmod +x {kubeadm,kubelet}
 
 RELEASE_VERSION="v0.4.0"
 curl -sSL "https://raw.githubusercontent.com/kubernetes/release/${RELEASE_VERSION}/cmd/kubepkg/templates/latest/deb/kubelet/lib/systemd/system/kubelet.service" | sed "s:/usr/bin:${DOWNLOAD_DIR}:g" | sudo tee /etc/systemd/system/kubelet.service
 sudo mkdir -p /etc/systemd/system/kubelet.service.d
 curl -sSL "https://raw.githubusercontent.com/kubernetes/release/${RELEASE_VERSION}/cmd/kubepkg/templates/latest/deb/kubeadm/10-kubeadm.conf" | sed "s:/usr/bin:${DOWNLOAD_DIR}:g" | sudo tee /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
 ```
 
+Install `kubectl` by following the instructions on [Install Tools page](/docs/tasks/tools/#kubectl).
+
 Enable and start `kubelet`:
 
 ```bash