From the source
Replit added a live markdown preview pane that appears when a .md file is open, with a toggle, scroll-syncing with the editor cursor, and support for rendering local images referenced in the file.
Markdown Preview
Replit adds live preview, scroll sync, and local image rendering for markdown files.
Capability change
From the source
Now, if you open up a markdown file (a file with a .md extension), you'll notice that a new tab appears to the right of your editor with the file's contents. This allows you to see a live preview of the rendered markdown right as you type it!
replit.com
