You can add another parameter to the /feed
: link
.
See here for the complete list of parameters.
Edit:
You can also add some og:tags
in your url inside <head>
that facebook will crawl and show by default in the feed:
<meta property="og:title" content="{your title here}" />
<meta property="og:description" content="{your description here}" />
<meta property="og:image" content="{your image here}" />
You can check what is facebook crawling from your site, here: Debugger