Create code for a responsive landing page that downloads data files to be stored on the blockchain using solidity

function download() {
  //Pseudo code to be edited later
  var xhttp = new XMLHttpRequest();
  xhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
     console.log(xhttp.responseText);
    }
    
    xhttp.open("GET", "https://api.github.com/users/supreetsingh247", true);
    xhttp.send();
  };