Fair question. I tried to edit the link but didn't seem to be able to edit the URL itself. I didn't realise I could delete and start again.
Sorry - I've not submitted many stories here before (and I've not submitted the wrong link when I have). My bad. :(
Don't worry about it, HN is not exactly intuitive, but you can't really break anything by clicking and trying. Or, more precisely, you can't break anything too bad.