fix minor typo of playbook name

automation/new_droplet.sh

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 set -e  # Exit on error
-cd "$(dirname "$0")"
+cd "$(cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )"
+
 [ `whoami` = root ] || { sudo "$0" "$@"; exit $?; } # enforce root as the ansible ssh key is installed under root
 
 . ../dmoj/scripts/utils/notify
@@ -60,7 +61,7 @@ echo "SSH is available!"
 
 # Run the Ansible playbook once SSH is up
 echo "Running Ansible playbook..."
-fetch_inventory | ansible-playbook -i /dev/stdin playbooks/initalize_worker.yml --extra-vars "droplet_name=$1 ansible_host=$droplet_priv_ipv4 public_ipv4=$droplet_pub_ipv4 ansible_user=root"
+fetch_inventory | ansible-playbook -i /dev/stdin ./playbooks/initialize_worker.yml --extra-vars "droplet_name=$1 ansible_host=$droplet_priv_ipv4 public_ipv4=$droplet_pub_ipv4 ansible_user=root"
 
 
 notify "Droplet $1 is provisioned and configured!"