Nope i had no clue i was supposed to link it

i just created an account that website and i cant login in game, also i cant create an account ingame, it wont let me

So I just bought Factorio on steam and i did a bit of the campaign then i tried to join a server and it told me to login so i put in my steam details and it didn't work. Someone told me to go to this link https://factorio.com/login and then click sign in through steam and i tried that but it said no ...