Add comment to check entries in hostfile README.md

README.md

@@ -83,6 +83,7 @@ Be aware that the development branches here are not save and the owner might for
 ## Bootstraping
 * Add your SSH-key to the host `ssh-copy-id lasXXX.las.kit.edu`
 * Install ansible dependencies: `dnf install python2-dnf libselinux-python`
+* Check the `hosts` file for entries of `lasXXX.las.kit.edu`
 * Run `ansible-playbook -K --vault-id @prompt sites.yml` probably with the option `-l lasXXX.las.kit.edu`
 
 ## Edit encrypted files