I mean using markdown to render html. This is somehow done by this website (that's why links are properly formatted in my posts) and by other sites such as https://bitcoin.stackexchange.com/. It can also be done client-side - I render html on my desktop with pollen
oh. you're wondering why markdown isn't formatted nicely in gossip? so it's actually specified in NIP01 to not parse and render Markdown.
Content that must be parsed, such as Markdown and HTML, should not be used. Clients should also not parse content as those.
I'm not really sure why, but I don't think any Nostr clients actually show notes as HTML instead of just raw Makrkdown.