[
  {
    "name": "cnpmjs",
    "menuname": "cnpmjs.org",
    "server": "http://r.cnpmjs.org/"
  },
  {
    "name": "npmjs",
    "menuname": "npmjs.org",
    "server": "https://registry.npmjs.org/"
  }
]

[
  {
    "name": "cnpmjs",
    "menuname": "cnpmjs.org (China mirror)",
    "server": "http://r.cnpmjs.org/"
  },
  {
    "name": "npmjs",
    "menuname": "npmjs.org (Main server)",
    "server": "https://registry.npmjs.org/"
  }
]

Add description of npm server
Add description of npm server
