An naddr is the stardard way of sharing a parametrized replaceable event. The identifier isn't human readable which is unfortunate for our usage but never the less it is the standard.

There is nothing to highlight it is a git reference but this is the case for all the popular git remote helpers.

Its probably only going to be cut and pasted along with a command like `git clone nostr://naddr123` so maybe it doesn't need a git prefix?