It looks like we removed the button because it was causing issues due to being a modal within a modal.
I agree that it would be nice to have, but we’ll have to figure out an alternate method to insert the links.
For now you’re correct; you can either use Markdown formatting or HTML:
Markdown:
[Example website](https://example.com)
HTML:
<a href="https://example.com">Example website</a>
Not sure why this would have happened regardless… as far as I know, all we did was remove the button.