Examine source code of python-doc

{
  "manifest_version": 2,
  "name": "python-doc",
  "version": "0.0.1",
  "description": "Always redirect to specified version of the python docs.",
  "content_scripts": [
    {
      "matches": [
        "*://docs.python.org/*"
      ],
      "js": [
        "python-doc.js"
      ]
    }
  ]
}