Merge pull request schoolofdevops#6 from Krullet/hotfix/line-break-fix

removed faulty row-break in syntax example

Author: initcron

chapters/cluster_setup_kubespray.md

@@ -355,9 +355,7 @@ To install **kubectl** on Ubuntu,
 
 ```
 sudo apt-get update && sudo apt-get install -y apt-transport-https
-curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo
-
-apt-key add -
+curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
 
 sudo touch /etc/apt/sources.list.d/kubernetes.list