You can create a page called
index.html and placed the code provided by
divergent in it.
What script says to place the code into an the
head tag it means; in valid html pages there are different parts such as the head and body.
CODE
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title> Website - Title </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<p> Content to be displayed in the browser window.
</body>
</html>
the red section is the head section. and that where you place the code form the script.
CODE
<head>
<title> Website - Title </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<META name="Description" content="SITE DESCRIPTION">
<META name="keywords" content="keywords,go,here,separate,by,commas">
</head>