markdown.cosmocr.at
Renders markdown stored in upspin. The URL path is the upspin path:
https://markdown.cosmocr.at/<user@domain>/path/to/doc.md
Publishing a document
Grant the renderer read access in an upspin Access file in the
directory you want to publish:
read,list: markdown@cosmocr.at
*: you@example.com
Then anyone with the link can view the rendered page. Directories show an index; relative links and images between documents work as expected.