fix typo
fix typo

If I'm not mistaken, this command has been changed to use `plugin`, right?
eugenesvk/oh-my-fish,oranja/oh-my-fish,wangyung/oh-my-fish,scorphus/oh-my-fish,bobthecow/oh-my-fish,oh-my-fish/oh-my-fish,scorphus/oh-my-fish,wangyung/oh-my-fish,oh-my-fish/oh-my-fish,oranja/oh-my-fish,eugenesvk/oh-my-fish