<<!DOCTYPE html>
<html>
<head>
  <title>QL Weather App</title>
</head>
<body>
  Hello World
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>QL Weather App</title>
</head>
<body>Hello World
</body>
</html>
Remove extra character, set UTF and language
Remove extra character, set UTF and language
