Use the LinkedIn share module to allow visitors to share your site or a specific page to their networks through LinkedIn. You can add a LinkedIn share module by selecting LinkedIn share under the category Social media in the Add module overlay.
Hover the module and click on Content or Design on the dropdown to edit your LinkedIn share module.
In Link to share, you can add the URL of the page you want your visitors to share. If you want them to share the page where the module is added, simply leave the field blank. The page added should have the following format: https://pagetoshare.com