API doc problems of swish
Created by: ranqiu92
针对以下问题修改时请协调组织其他内容语言
单词拼写、遗漏和语法等问题未列出,修改时请注意
API注释标准!
请参考源文件:https://github.com/PaddlePaddle/Paddle/blob/develop/python/paddle/fluid/layers/ops.py
Created by: ranqiu92
源文件:https://github.com/PaddlePaddle/Paddle/blob/develop/python/paddle/fluid/layers/ops.py