parsedown/tests/data/url_autolinking.html

<p>an autolink <a href="http://example.com">http://example.com</a></p>
<p>inside of brackets [<a href="http://example.com">http://example.com</a>], inside of braces {<a href="http://example.com">http://example.com</a>},  inside of parentheses (<a href="http://example.com">http://example.com</a>)</p>