[zanata/zanata-server] bb889c: add a section for developer prereqs

[GitHub]

  Branch: refs/heads/build-scripts
  Home:   https://github.com/zanata/zanata-server
  Commit: bb889c2da7d90001aec33547751bce1d4a298f3f
      https://github.com/zanata/zanata-server/commit/bb889c2da7d90001aec33547751bce1d4a298f3f
  Author: Carlos Munoz <chavo16 at hotmail.com>
  Date:   2016-04-08 (Fri, 08 Apr 2016)

  Changed paths:
    M README.md

  Log Message:
  -----------
  add a section for developer prereqs