Merge pull request #2774 from chuckwagoncomputing/note-become-flag

Add note for -K flag to Ansible

examples/hosts

@@ -2,7 +2,9 @@
 # If you'd rather use a local IP here, make sure to set up `matrix_coturn_turn_external_ip_address`.
 #
 # To connect using a non-root user (and elevate to root with sudo later),
-# replace `ansible_ssh_user=root` with something like this: `ansible_ssh_user=username become=true become_user=root`
+# replace `ansible_ssh_user=root` with something like this: `ansible_ssh_user=username become=true become_user=root`.
+# If sudo requires a password, either add `become_password=PASSWORD_HERE` to the host line
+# or tell Ansible to ask you for the password interactively by adding a `--ask-become-pass` (`-K`) flag to all `ansible-playbook` (or `just`) commands.
 #
 # For improved Ansible performance, SSH pipelining is enabled by default in `ansible.cfg`.
 # If this causes SSH connection troubles, disable it by adding `ansible_ssh_pipelining=False`