Signed-off-by: abelxie <jinjing.xie@gmail.com>
Signed-off-by: abelxie <jinjing.xie@gmail.com>
ctex version

Signed-off-by: abelxie <jinjing.xie@gmail.com>
inserted Graphics

Signed-off-by: abelxie <jinjing.xie@gmail.com>
update figure