[zanata/zanata-server] fa991a: update image urls

[GitHub]

  Branch: refs/heads/viewdocs
  Home:   https://github.com/zanata/zanata-server
  Commit: fa991ae7a14a81d2da4d4e8565499944e1d4725e
      https://github.com/zanata/zanata-server/commit/fa991ae7a14a81d2da4d4e8565499944e1d4725e
  Author: Carlos Munoz <chavo16 at hotmail.com>
  Date:   2016-06-15 (Wed, 15 Jun 2016)

  Changed paths:
    M docs/user-guide/translator-guide.md

  Log Message:
  -----------
  update image urls

the current image urls are not shown by github or viewdocs. Update them so that they are. These new urls might not be compatible with readthedocs.