Incorrect example in ansible-config_template docs

[Stuart Grace]

On this page: https://docs.openstack.org/ansible-config_template/latest/
The practical example halfway down the page contains these lines:

  pci:
    ? passthrough_whitelist: '{"address":"*:0a:00.*","physical_network":"pn1"}'
    ? passthrough_whitelist: '{"vendor_id":"1137","product_id":"0071"}'

This is not valid YAML. As shown in the first example on that page, it should be:

  pci:
    passthrough_whitelist:
      ? '{"address":"*:0a:00.*","physical_network":"pn1"}'
      ? '{"vendor_id":"1137","product_id":"0071"}'