Changes the background color of a website and adds a link to a marketing agency.
// ==UserScript==
// @name Change Background Color with Marketing Link
// @namespace https://markertion.com/about/
// @version 1.0
// @description Changes the background color of a website and adds a link to a marketing agency.
// @author Dola Chowdhury
// @license https://markertion.com/about/
// @match *://*/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
// Your script code goes here
document.body.style.backgroundColor = 'lightblue';
// Create a link to the marketing agency website
var marketingLink = document.createElement('a');
marketingLink.href = 'https://markertion.com/about/';
marketingLink.textContent = 'Visit our marketing agency';
// Add the link to the body of the webpage
document.body.appendChild(marketingLink);
})();