add zsh alias for mkcd
drwxr-xr-x - atom
drwxr-xr-x - compton
drwxr-xr-x - i3
drwxr-xr-x - minicom
drwxr-xr-x - pandoc
drwxr-xr-x - vim
drwxr-xr-x - vlc
drwxr-xr-x - x
drwxr-xr-x - zsh