download.mk: add more comments
authorYousong Zhou <yszhou4tech@gmail.com>
Tue, 3 Jul 2018 08:15:35 +0000 (16:15 +0800)
committerYousong Zhou <yszhou4tech@gmail.com>
Wed, 4 Jul 2018 17:30:57 +0000 (01:30 +0800)
commite48ea13b3bac5393d6400156ddb066ec5de2ea4e
tree5600319f06a9dde73f7cf608743624b1b1578a04
parenteb6759cc786b9a5fe1425364fc54212a425ff0be
download.mk: add more comments

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
include/download.mk