docs: explain how to use `git imap-send --list` command to get a list of available folders
The output `git imap-send --list` command can be a bit confusing for new
users since the IMAP LIST command output is very verbose. Help such users
to analyse the same by using an example output.
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
authored by