Hi. That's part of the more the robust editing ability the author's have, it's not currently available in comments. But we can look into adding it. Thanks.
I see articles written where the author has linked other articles. The link is just one word. For example
Drama Queens | Seeking Alpha the article I just linked has a link to another article called 'hysterics'
That would be awesome. Also, somewhere there should be a list of commands for the comments editor IMHO.