Show current remote for folders that are git repo

[letientai299]

I suggest an enhancement to make --git more useful for any one work with multiple git repos.

> exa -lah --git
Permissions Size User   Date Modified Name       Remote
.rw-r--r--@ 6.1k tai.le 21 Jan  5:20  .DS_Store
drwxr-xr-x     - tai.le 21 Jan  5:19  go         https://github.com/golang/go
drwxr-xr-x     - tai.le  7 Dec  2018  neovim     https://github.com/neovim/neovim
drwxr-xr-x     - tai.le 10 Oct  2018  ranger     https://github.com/ranger/ranger
drwxr-xr-x     - tai.le 10 Oct  2018  exa        https://github.com/ogham/exa