Examine source code of csdnautoreadmore

{
  "manifest_version": 2,
  "name": "csdnautoreadmore",
  "version": "1.0",
  "description": "Auto expand the csdn page with click new read more button",
  "icons": {
    "48": "csdnautoreadmore.jpg"
  },
  "content_scripts": [
    {
      "matches": [
        "*://blog.csdn.net/*"
      ],
      "js": [
        "csdnautoreadmore.js"
      ]
    }
  ]
}