Update index_en.rst (#9924)
Update index_en.rst (#9924)

* Update index_en.rst

* update requested changes

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