By default, when you share the URL to Facebook, it'll show a thumbnail, title, description and author name.
To change author tag By Haintheme, you can use Yoast SEO plugin.
- The First thing you need to do is install and activate, the WordPress SEO by Yoast plugin.
- Once activated, you need to go to SEO » Social and simply check Enable to Add OpenGraph meta data
Select Account tab then insert your Facebook URL