[zanata/zanata-server] e4da65: Add explore section in documentation

[GitHub]

  Branch: refs/heads/redux-app
  Home:   https://github.com/zanata/zanata-server
  Commit: e4da651a0acbe5e98ea103c33a386fbb8a07b415
      https://github.com/zanata/zanata-server/commit/e4da651a0acbe5e98ea103c33a386fbb8a07b415
  Author: Alex Eng <aeng at redhat.com>
  Date:   2016-06-01 (Wed, 01 Jun 2016)

  Changed paths:
    A docs/images/explore-default-page.png
    A docs/images/explore-menu.png
    A docs/images/explore-search-page.png
    A docs/user-guide/explore/explore.md
    M mkdocs.yml

  Log Message:
  -----------
  Add explore section in documentation