[zanata/zanata-server] 629fd0: docs(contributing): fix the spelling

[GitHub]

  Branch: refs/heads/contributing
  Home:   https://github.com/zanata/zanata-server
  Commit: 629fd07dffb285b900d2ae0a5387ea292919aea4
      https://github.com/zanata/zanata-server/commit/629fd07dffb285b900d2ae0a5387ea292919aea4
  Author: Ding-Yi Chen <dingyichen at gmail.com>
  Date:   2016-03-11 (Fri, 11 Mar 2016)

  Changed paths:
    M CONTRIBUTING.md

  Log Message:
  -----------
  docs(contributing): fix the spelling