CLI installation wizard bug for zsh

[wdeshazer]

I love the wizard, but realized that it doesn't honor the ZSH environment variable ZDOTDIR. It created a .zshrc in my $HOME and appended:

# >>> juliaup initialize >>>

# !! Contents within this block are managed by juliaup !!

path=('$HOME/.config/juliaup/bin' $path)
export PATH

# <<< juliaup initialize <<<

It didn't use $HOME, I just edited for generality. I would provide a suggested fix, but I am crunched for time. The ZSH convention is to use $ZDOTDIR and defaults to $HOME. I think that should be an easy fix, but always easier said than done.