If you looking to link minehut account with your minecraft account then you press circle with the person in the right corner up. then press account settings. Then link account then minehut will tell what to do.
if you looking too access your minecraft server then go to minecraft and press multiplayer then add server. write this in server adress %name of server%.minehut.gg. then you should be able to join it.
if none of these is something you're looking for then it should be in the minehut channel in youtube.