File _service of Package lightdm-webkit2-greeter

<services>
  <service name="download_url">
    <param name="protocol">https</param>
    <param name="host">github.com</param>
    <param name="path">Antergos/web-greeter/archive/2.2.5.tar.gz</param>
    <param name="filename">lightdm-webkit2-greeter_2.2.5.orig.tar.gz</param>
  </service>
</services>