Spike,
Sorry for the delayed response and thanks for the praise of JFBConnect. I always love reading your requests for support
Right now, there isn't a setting to add an intro text before the Comment or Social Sharing buttons. I did add the idea to our to-do list though as it's a good one, and should be easy to add in the future.
For now, if you want to add something yourself, it's (relatively) pain-free. To do so, edit the /plugins/content/jfbccontent/jfbccontent.php file. Around line 166, you'll see:
$this->addTextToArticle($article, $likeText, $showLikeInViewPosition);
Update that like:
$intro = "<div class='social-intro'><strong>Share This Article With Your Friends </strong><br/>
If you enjoyed this article, please take a second to comment and share it with your friends using your favorite social media listed below. Thanks in advance for your consideration.</div>";
$likeText = $intro . $likeText;
$this->addTextToArticle($article, $likeText, $showLikeInViewPosition);
There's similar code about 8 lines lower for the Comment box. You can update it in a very similar way.
I hope that helps, but if you have any questions, please let me know.
Thanks,
Alex