Do you have different authors in your blog? Do you want to give him more credit? Do you want to give more visibility to those who write on your website? Maybe with this you can do it. And is that the SEO plugins that serve to improve meta descriptions and titles also come with a plus: the possibility of improving the author profile .
Yoast SEO stuff
For example, with Yoast's SEO plugin (the standard, which you can download from the official repository) you can include the URL of the Facebook profile of the author who writes for you.
To do this you just have to fill in the section " URL of the Facebook profile " that appears in the editing section of each of your users. In the example you see where (I already tell you that it is with the Yoast plugin)
The Magic of Open Graph
This what makes is that appears in the source code a meta tag related to Open Graph which are the metadata that Facebook uses to know authorship, publication data, dates, and much more. This metadata will be as complete as complete we put them in our author file in its corresponding section.
Obviously, these data do not appear visually in your subject unless this allows it. It is something that the developer or the corresponding plugin must do conveniently.
In the webpage of the example that we are seeing, the author's data appears in the entry. But I'm telling you, this is not automatic, it's something that comes in the template that shows your website.