docs

ansible/README.md

@@ -40,12 +40,15 @@ console, not SSH:
 
 ```bash
 cp inventory.example.yml inventory.yml
-ansible-playbook bootstrap.yml            # root already has your key
-ansible-playbook bootstrap.yml -k         # root password login (needs sshpass)
+ansible-playbook bootstrap.yml
 # custom key or username:
 ansible-playbook bootstrap.yml -e bootstrap_ssh_public_key_file=~/.ssh/vpnhub.pub
 ```
 
+It prompts for the root SSH password up front (install `sshpass` on the
+control node for password auth). If root already logs in with your key,
+just press Enter at the prompt.
+
 Everything after this runs as `ansible` (already the inventory example's
 default).