as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
modify the html document below by replacing the two comments with an appropriate heading tag

<!doctype html>
<html>
<!-- heading -->
<!-- subheading -->
<body>

some text

</body>
</html>
user
<!doctype html>
<html>
<h1>heading</h1>
<h2>subheading</h2>
<body>

some text

</body>
</html>
assistant