Fix documentation of embedding layer (#6854)
Fix documentation of embedding layer (#6854)


QiJune/Paddle,putcn/Paddle,tensor-tang/Paddle,pkuyym/Paddle,lcy-seso/Paddle,Canpio/Paddle,Canpio/Paddle,Canpio/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,chengduoZH/Paddle,Canpio/Paddle,baidu/Paddle,Canpio/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,QiJune/Paddle,putcn/Paddle,tensor-tang/Paddle,reyoung/Paddle,putcn/Paddle,Canpio/Paddle,jacquesqiao/Paddle,reyoung/Paddle,PaddlePaddle/Paddle,baidu/Paddle,lcy-seso/Paddle,baidu/Paddle,QiJune/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,QiJune/Paddle,pkuyym/Paddle,jacquesqiao/Paddle,reyoung/Paddle,pkuyym/Paddle,jacquesqiao/Paddle,lcy-seso/Paddle,PaddlePaddle/Paddle,Canpio/Paddle,putcn/Paddle,pkuyym/Paddle,pkuyym/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,luotao1/Paddle,luotao1/Paddle,chengduoZH/Paddle,luotao1/Paddle,jacquesqiao/Paddle,chengduoZH/Paddle,reyoung/Paddle,jacquesqiao/Paddle,pkuyym/Paddle,QiJune/Paddle,baidu/Paddle,reyoung/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,reyoung/Paddle,lcy-seso/Paddle,lcy-seso/Paddle,putcn/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,lcy-seso/Paddle,QiJune/Paddle,luotao1/Paddle,baidu/Paddle,putcn/Paddle,Canpio/Paddle