Created by: weixing02
Change image links: https://github.com/PaddlePaddle/Paddle/blob/develop/doc/fluid/images/* to: https://raw.githubusercontent.com/PaddlePaddle/Paddle/develop/doc/fluid/images/*
https://github.com/PaddlePaddle/Paddle/blob/develop/doc/fluid/images/*
https://raw.githubusercontent.com/PaddlePaddle/Paddle/develop/doc/fluid/images/*