<dd>Optional. String. The screen reader description and anchor title. Example: <code>GitHub</code>.</dd>
<dt><code>url</code></dt>
<dd>Optional. String. URL. Example: <code>https://github.com/willfaught/paige</code>. E-mails in URLs with a <code>mailto:</code> scheme are protected from web crawlers.</dd>
<dd>Optional. String. URL. Example: <code>https://github.com/account/project</code>. E-mails in URLs with a <code>mailto:</code> scheme are protected from web crawlers.</dd>