Open link in new tab option

[kenold]

Please add option to open link in new tab and add a target variable in _config.yml

jekyll-mentions:
  target: blank

[emmahsax]

I would also appreciate this as an option.

[DhanabakiyamS]

tarket=_blank

[gjtorikian]

A new (beta) release of HTML-Proofer has been released, v3.0.0.pre1. I tried to go back and address all the issues in this repo. For this specific issue, I think it's outside the scope of the project. You can create your own NodeFilter to add this attribute though; see the updated README for more information.