Github page switcher

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Github page switcher",
    "version": "0.4.0",
    "manifest_version": 3,
    "description": "show one-touch button between github repository and github page",
    "icons": {
        "16": "icon_016.png",
        "128": "icon_128.png"
    },
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "matches": [
                "*:\/\/github.com\/*",
                "*:\/\/*.github.io\/*"
            ],
            "js": [
                "page-switcher.js"
            ],
            "css": []
        }
    ],
    "permissions": [],
    "host_permissions": [
        "*:\/\/github.com\/*",
        "*:\/\/*.github.io\/*"
    ]
}