Inviting learners to your course is discussed here.
Sharing options appear in the sharing sub-section of the course management page.
You will not see sharing options unless your course is set to public.
Click on any of the icons to activate them. You can post a link to your course directly to your social media accounts. You may email a link from here, and you will find the embed code and course url here, also.
You may also find some sharing features directly inside the course in the "Settings" section of the left Menu Bar.
Learn more about embedding Versal courses here.