You can add a custom title and subtitle to your post if you want to have a different title for the preview, and a different one on the post page itself.
- Enter edit mode either by starting a new draft, or by visiting your story page, clicking the button in the top-right corner and choosing Edit story.
- In edit mode, click the menu icon in the top-right corner of the page.
- From the drop-menu, click Change display title / subtitle.
Enter your custom title and/or subtitle, which will appear in previews of your story on Medium, and on social media.