Customize Shortcode

The link in the admin area for the plugin to go to documentation is broken (https://www.rockwellgrowth.com/linkedin-company-updates/). I’d like to know how to customize the shortcode – what options are there, etc. Specifically, I’d like to be able to link the LinkedIn Logo at the top of the feed to our LinkedIn page.

Thanks!

The page I need help with: [log in to see the link]