There are two different "web copy" links you can add to your email: Web Copy and Web Copy (no social links).
This option will add a link to your email that will point readers to the full version of your email on a web page. This will also include four social links at the top that readers can click on to share your content with their followers. These social links include Facebook, Twitter, LinkedIn, and Google+.
Web copy (no social links)
This option will add a link to your email that will point readers to the full version of your email on a web page.
While you can add the "web copy" link anywhere in your email, it's common practice to add it to the top where recipients will easily see it. Note that any campaign with a "Sent" status cannot be edited. Automation email can be edited at any time.