write an an article about html code example
Example: html article
<article>
<h2>Article Header</h2>
<section>
<h3>Section Header</h3>
<p>Paragraph</p>
<p>Paragraph</p>
<p>Paragraph</p>
</section>
<section>
<h3>Section Header</h3>
<p>Paragraph</p>
<p>Paragraph</p>
<p>Paragraph</p>
</section>
</article>