next time while using Amethyst, select ''Copy Note-ID'', if you want to share events inside Nostr. You now shared an URL, which is intended for use outside of Nostr, and does not give a clean reference, but rather sends people to a website. You can always do things manually by adding "nostr:" infront of what it is you reference, be that an npub1..., nprofile1...., nevent1....., naddr1.... etc.