The preview page of a story is a static version that can be shared with anyone, no account is needed. People can even leave comments to give you feedback and suggestions.

Step 1. Go to the piece of content you want to share per link and click on 'Collaborate'.

Now enable 'Link sharing' and click on the link to copy. External people can now view this piece of content.

Step 2. Open the public link and click on the "comments" button to suggest changes or additions. You can even highlight a section of text to make it clear what your comment is relating to.