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.
Start using the preview page for feedback
Accessing the preview page of a story
Step 1. The preview can be seen from inside your Stories page.
Or from inside the story editor.
Step 2. Click on the "comments" button to suggest changes or additions.
Step 3. You can even highlight a section of text to make it clear what your comment is relating to.