Bug#517219: #517219 Error in description

[Steve Cotton]

Hi,

etw-data's description now tells you most of what etw's
description does.  I think opencity-data's description would be
better if it contained at least

  "OpenCity is 3D city construction simulator. You can build some
  zones of housing, trading and industry, electric plant and roads."

Thank you for packaging OpenCity.

Cheers,
Steve