I am relatively confused on this cause for some people it works fine for other not so much, this is the introductions link, and it is public https://discord.gg/ZgWP78dV It might be just not taking people straight to the discord but if it's not working, I'll try and fix it, but you should just be able to look it up on discord.
I just tried it by the way for me you just have to have discord open, and it takes you there, but you have to manually go out of your browser.