[zanata/zanata-server] f81791: add readme to frontend module

[GitHub]

  Branch: refs/heads/frontend
  Home:   https://github.com/zanata/zanata-server
  Commit: f8179171476f09801f6491a418f3a6c263b53451
      https://github.com/zanata/zanata-server/commit/f8179171476f09801f6491a418f3a6c263b53451
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2015-06-09 (Tue, 09 Jun 2015)

  Changed paths:
    A frontend/README.md

  Log Message:
  -----------
  add readme to frontend module