doc: Fix configuration directory in remotes.md
doc: Fix configuration directory in remotes.md

Signed-off-by: Mathias Gibbens <f3831ee701bfa1455c9328cf6259b44bd9443aee@debian.org>

lxc/lxd,lxc/lxd,lxc/lxd,lxc/lxd,lxc/lxd,lxc/lxd,lxc/lxd