Update aws.md
Update aws.md

A few small wording changes to make the wording flow better. No change to content.
xcgoner/dist-mxnet,jiajiechen/mxnet,jamesliu/mxnet,hotpxl/mxnet,LinkHS/incubator-mxnet,szha/mxnet,hpi-xnor/BMXNet,ForkedReposBak/mxnet,rishita/mxnet,Guneet-Dhillon/mxnet,apache/incubator-mxnet,wangyum/mxnet,jiajiechen/mxnet,apaleyes/mxnet,Prasad9/incubator-mxnet,jermainewang/mxnet,sxjscience/mxnet,tornadomeet/mxnet,likelyzhao/mxnet,jermainewang/mxnet,zhreshold/mxnet,jiajiechen/mxnet,vikingMei/mxnet,Guneet-Dhillon/mxnet,reminisce/mxnet,ykim362/mxnet,jermainewang/mxnet,EvanzzzZ/mxnet,reminisce/mxnet,Prasad9/incubator-mxnet,TuSimple/mxnet,kevinthesun/mxnet,hotpxl/mxnet,yuruofeifei/mxnet,mbaijal/incubator-mxnet,CodingCat/mxnet,kevinthesun/mxnet,arank/mxnet,hotpxl/mxnet,saurabh3949/mxnet,reminisce/mxnet,ptrendx/mxnet,jamesliu/mxnet,formath/mxnet,smolix/incubator-mxnet,ykim362/mxnet,gautamkmr/incubator-mxnet,Northrend/mxnet,weleen/mxnet,coder-james/mxnet,coder-james/mxnet,Northrend/mxnet,zhreshold/mxnet,xcgoner/dist-mxnet,lxn2/mxnet,tlby/mxnet,tlby/mxnet,rahul003/mxnet,larroy/mxnet,crazy-cat/incubator-mxnet,formath/mxnet,tlby/mxnet,CodingCat/mxnet,precedenceguo/mxnet,sxjscience/mxnet,Northrend/mxnet,navrasio/mxnet,kevinthesun/mxnet,jamesliu/mxnet,szha/mxnet,yajiedesign/mxnet,luoyetx/mxnet,smolix/incubator-mxnet,ShownX/incubator-mxnet,eric-haibin-lin/mxnet,Mega-DatA-Lab/mxnet,szha/mxnet,leezu/mxnet,reminisce/mxnet,antoan2/incubator-mxnet,jennyzhang0215/incubator-mxnet,luoyetx/mxnet,piiswrong/mxnet,reminisce/mxnet,ShownX/incubator-mxnet,hesseltuinhof/mxnet,navrasio/mxnet,ptrendx/mxnet,ZihengJiang/mxnet,zhreshold/mxnet,pluskid/mxnet,vikingMei/mxnet,saurabh3949/mxnet,hpi-xnor/BMXNet,pluskid/mxnet,antoan2/incubator-mxnet,DR08/mxnet,ZihengJiang/mxnet,szha/mxnet,gautamkmr/incubator-mxnet,fullfanta/mxnet,rahul003/mxnet,rahul003/mxnet,leezu/mxnet,leezu/mxnet,DR08/mxnet,stefanhenneking/mxnet,LinkHS/incubator-mxnet,zhreshold/mxnet,ptrendx/mxnet,likelyzhao/mxnet,mbaijal/incubator-mxnet,rahul003/mxnet,saurabh3949/mxnet,rishita/mxnet,dmlc/mxnet,madjam/mxnet,kkk669/mxnet,tlby/mxnet,antoan2/incubator-mxnet,stefanhenneking/mxnet,sxjscience/mxnet,Guneet-Dhillon/mxnet,crazy-cat/incubator-mxnet,danithaca/mxnet,ykim362/mxnet,zhreshold/mxnet,ForkedReposBak/mxnet,nicklhy/mxnet,hesseltuinhof/mxnet,LinkHS/incubator-mxnet,Prasad9/incubator-mxnet,jamesliu/mxnet,xcgoner/dist-mxnet,yajiedesign/mxnet,antoan2/incubator-mxnet,formath/mxnet,zhreshold/mxnet,LinkHS/incubator-mxnet,stefanhenneking/mxnet,coder-james/mxnet,piiswrong/mxnet,ShownX/incubator-mxnet,hesseltuinhof/mxnet,CodingCat/mxnet,pluskid/mxnet,kkk669/mxnet,danithaca/mxnet,kkk669/mxnet,sergeykolychev/mxnet,rishita/mxnet,yuruofeifei/mxnet,dmlc/mxnet,mbaijal/incubator-mxnet,jiajiechen/mxnet,mbaijal/incubator-mxnet,eric-haibin-lin/mxnet,kevinthesun/mxnet,thirdwing/mxnet,stefanhenneking/mxnet,yuruofeifei/mxnet,thirdwing/mxnet,TuSimple/mxnet,navrasio/mxnet,Guneet-Dhillon/mxnet,ZihengJiang/mxnet,ForkedReposBak/mxnet,TuSimple/mxnet,stefanhenneking/mxnet,gautamkmr/incubator-mxnet,EvanzzzZ/mxnet,fullfanta/mxnet,dmlc/mxnet,EvanzzzZ/mxnet,rishita/mxnet,tornadomeet/mxnet,Mega-DatA-Lab/mxnet,sxjscience/mxnet,fullfanta/mxnet,tornadomeet/mxnet,vikingMei/mxnet,yajiedesign/mxnet,luoyetx/mxnet,yuruofeifei/mxnet,apaleyes/mxnet,DickJC123/mxnet,gautamkmr/incubator-mxnet,solin319/incubator-mxnet,jamesliu/mxnet,CodingCat/mxnet,tlby/mxnet,ptrendx/mxnet,saurabh3949/mxnet,gautamkmr/incubator-mxnet,antoan2/incubator-mxnet,solin319/incubator-mxnet,kkk669/mxnet,smolix/incubator-mxnet,reminisce/mxnet,ZihengJiang/mxnet,sergeykolychev/mxnet,szha/mxnet,jiajiechen/mxnet,coder-james/mxnet,kevinthesun/mxnet,kkk669/mxnet,ykim362/mxnet,leezu/mxnet,crazy-cat/incubator-mxnet,danithaca/mxnet,crazy-cat/incubator-mxnet,rahul003/mxnet,gautamkmr/incubator-mxnet,wangyum/mxnet,dmlc/mxnet,lxn2/mxnet,EvanzzzZ/mxnet,wangyum/mxnet,piiswrong/mxnet,kkk669/mxnet,tornadomeet/mxnet,piiswrong/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,hpi-xnor/BMXNet,arank/mxnet,saurabh3949/mxnet,antoan2/incubator-mxnet,saurabh3949/mxnet,kevinthesun/mxnet,thirdwing/mxnet,jennyzhang0215/incubator-mxnet,Ldpe2G/mxnet,vikingMei/mxnet,hpi-xnor/BMXNet,Prasad9/incubator-mxnet,piiswrong/mxnet,Northrend/mxnet,leezu/mxnet,crazy-cat/incubator-mxnet,madjam/mxnet,smolix/incubator-mxnet,apaleyes/mxnet,precedenceguo/mxnet,Mega-DatA-Lab/mxnet,lxn2/mxnet,EvanzzzZ/mxnet,yajiedesign/mxnet,arikpoz/mxnet,stefanhenneking/mxnet,jermainewang/mxnet,thirdwing/mxnet,hotpxl/mxnet,TuSimple/mxnet,EvanzzzZ/mxnet,madjam/mxnet,likelyzhao/mxnet,formath/mxnet,eric-haibin-lin/mxnet,likelyzhao/mxnet,ShownX/incubator-mxnet,DR08/mxnet,wangyum/mxnet,rishita/mxnet,Northrend/mxnet,luoyetx/mxnet,precedenceguo/mxnet,fullfanta/mxnet,xcgoner/dist-mxnet,weleen/mxnet,antoan2/incubator-mxnet,Northrend/mxnet,arank/mxnet,ptrendx/mxnet,Guneet-Dhillon/mxnet,jermainewang/mxnet,dmlc/mxnet,vikingMei/mxnet,DR08/mxnet,Ldpe2G/mxnet,nicklhy/mxnet,mbaijal/incubator-mxnet,rishita/mxnet,apaleyes/mxnet,jennyzhang0215/incubator-mxnet,Prasad9/incubator-mxnet,sxjscience/mxnet,precedenceguo/mxnet,kevinthesun/mxnet,madjam/mxnet,TuSimple/mxnet,pluskid/mxnet,jamesliu/mxnet,mbaijal/incubator-mxnet,DR08/mxnet,Mega-DatA-Lab/mxnet,precedenceguo/mxnet,nicklhy/mxnet,eric-haibin-lin/mxnet,indhub/mxnet,indhub/mxnet,hpi-xnor/BMXNet,Prasad9/incubator-mxnet,tornadomeet/mxnet,antoan2/incubator-mxnet,danithaca/mxnet,ShownX/incubator-mxnet,rahul003/mxnet,szha/mxnet,arank/mxnet,likelyzhao/mxnet,indhub/mxnet,ykim362/mxnet,lxn2/mxnet,TuSimple/mxnet,arank/mxnet,jermainewang/mxnet,jermainewang/mxnet,navrasio/mxnet,navrasio/mxnet,solin319/incubator-mxnet,reminisce/mxnet,Mega-DatA-Lab/mxnet,dmlc/mxnet,yajiedesign/mxnet,LinkHS/incubator-mxnet,fullfanta/mxnet,formath/mxnet,sergeykolychev/mxnet,sergeykolychev/mxnet,arikpoz/mxnet,larroy/mxnet,ForkedReposBak/mxnet,danithaca/mxnet,piiswrong/mxnet,arank/mxnet,coder-james/mxnet,solin319/incubator-mxnet,coder-james/mxnet,indhub/mxnet,apache/incubator-mxnet,reminisce/mxnet,antoan2/incubator-mxnet,apaleyes/mxnet,xcgoner/dist-mxnet,reminisce/mxnet,eric-haibin-lin/mxnet,ykim362/mxnet,jamesliu/mxnet,nicklhy/mxnet,lxn2/mxnet,jennyzhang0215/incubator-mxnet,sergeykolychev/mxnet,crazy-cat/incubator-mxnet,piiswrong/mxnet,luoyetx/mxnet,saurabh3949/mxnet,yuruofeifei/mxnet,formath/mxnet,smolix/incubator-mxnet,larroy/mxnet,formath/mxnet,crazy-cat/incubator-mxnet,pluskid/mxnet,yajiedesign/mxnet,sxjscience/mxnet,indhub/mxnet,leezu/mxnet,weleen/mxnet,smolix/incubator-mxnet,navrasio/mxnet,ForkedReposBak/mxnet,Northrend/mxnet,thirdwing/mxnet,yuruofeifei/mxnet,hpi-xnor/BMXNet,hesseltuinhof/mxnet,lxn2/mxnet,ShownX/incubator-mxnet,hesseltuinhof/mxnet,kkk669/mxnet,hesseltuinhof/mxnet,LinkHS/incubator-mxnet,arikpoz/mxnet,LinkHS/incubator-mxnet,precedenceguo/mxnet,TuSimple/mxnet,ykim362/mxnet,larroy/mxnet,xcgoner/dist-mxnet,CodingCat/mxnet,likelyzhao/mxnet,apache/incubator-mxnet,madjam/mxnet,xcgoner/dist-mxnet,larroy/mxnet,tlby/mxnet,navrasio/mxnet,ZihengJiang/mxnet,nicklhy/mxnet,eric-haibin-lin/mxnet,coder-james/mxnet,luoyetx/mxnet,sergeykolychev/mxnet,tlby/mxnet,jiajiechen/mxnet,jennyzhang0215/incubator-mxnet,rishita/mxnet,jennyzhang0215/incubator-mxnet,CodingCat/mxnet,eric-haibin-lin/mxnet,hotpxl/mxnet,vikingMei/mxnet,danithaca/mxnet,larroy/mxnet,mbaijal/incubator-mxnet,DR08/mxnet,Ldpe2G/mxnet,smolix/incubator-mxnet,Guneet-Dhillon/mxnet,jennyzhang0215/incubator-mxnet,thirdwing/mxnet,likelyzhao/mxnet,ZihengJiang/mxnet,leezu/mxnet,arikpoz/mxnet,DR08/mxnet,szha/mxnet,gautamkmr/incubator-mxnet,yajiedesign/mxnet,pluskid/mxnet,ptrendx/mxnet,madjam/mxnet,jiajiechen/mxnet,stefanhenneking/mxnet,arank/mxnet,zhreshold/mxnet,Guneet-Dhillon/mxnet,indhub/mxnet,LinkHS/incubator-mxnet,ShownX/incubator-mxnet,likelyzhao/mxnet,jiajiechen/mxnet,Guneet-Dhillon/mxnet,lxn2/mxnet,tlby/mxnet,rahul003/mxnet,kevinthesun/mxnet,yuruofeifei/mxnet,rahul003/mxnet,CodingCat/mxnet,nicklhy/mxnet,pluskid/mxnet,yajiedesign/mxnet,vikingMei/mxnet,jennyzhang0215/incubator-mxnet,coder-james/mxnet,ZihengJiang/mxnet,weleen/mxnet,Ldpe2G/mxnet,coder-james/mxnet,nicklhy/mxnet,lxn2/mxnet,jennyzhang0215/incubator-mxnet,Guneet-Dhillon/mxnet,saurabh3949/mxnet,vikingMei/mxnet,gautamkmr/incubator-mxnet,jermainewang/mxnet,solin319/incubator-mxnet,tlby/mxnet,smolix/incubator-mxnet,hotpxl/mxnet,reminisce/mxnet,solin319/incubator-mxnet,tornadomeet/mxnet,hotpxl/mxnet,sergeykolychev/mxnet,Northrend/mxnet,luoyetx/mxnet,precedenceguo/mxnet,gautamkmr/incubator-mxnet,ForkedReposBak/mxnet,Northrend/mxnet,solin319/incubator-mxnet,vikingMei/mxnet,arikpoz/mxnet,nicklhy/mxnet,ptrendx/mxnet,larroy/mxnet,danithaca/mxnet,apaleyes/mxnet,lxn2/mxnet,arank/mxnet,navrasio/mxnet,danithaca/mxnet,indhub/mxnet,ShownX/incubator-mxnet,formath/mxnet,nicklhy/mxnet,ptrendx/mxnet,ptrendx/mxnet,navrasio/mxnet,hotpxl/mxnet,TuSimple/mxnet,hpi-xnor/BMXNet,dmlc/mxnet,madjam/mxnet,yajiedesign/mxnet,yuruofeifei/mxnet,thirdwing/mxnet,larroy/mxnet,luoyetx/mxnet,CodingCat/mxnet,ZihengJiang/mxnet,rishita/mxnet,tornadomeet/mxnet,hesseltuinhof/mxnet,DickJC123/mxnet,sxjscience/mxnet,Prasad9/incubator-mxnet,mbaijal/incubator-mxnet,leezu/mxnet,ForkedReposBak/mxnet,fullfanta/mxnet,leezu/mxnet,thirdwing/mxnet,solin319/incubator-mxnet,yuruofeifei/mxnet,apaleyes/mxnet,fullfanta/mxnet,szha/mxnet,arikpoz/mxnet,rishita/mxnet,DR08/mxnet,Ldpe2G/mxnet,crazy-cat/incubator-mxnet,likelyzhao/mxnet,Prasad9/incubator-mxnet,ptrendx/mxnet,DickJC123/mxnet,xcgoner/dist-mxnet,madjam/mxnet,Mega-DatA-Lab/mxnet,wangyum/mxnet,EvanzzzZ/mxnet,jermainewang/mxnet,mbaijal/incubator-mxnet,tornadomeet/mxnet,kkk669/mxnet,formath/mxnet,jamesliu/mxnet,TuSimple/mxnet,Prasad9/incubator-mxnet,arank/mxnet,weleen/mxnet,apaleyes/mxnet,Mega-DatA-Lab/mxnet,szha/mxnet,ykim362/mxnet,Ldpe2G/mxnet,EvanzzzZ/mxnet,stefanhenneking/mxnet,kevinthesun/mxnet,hesseltuinhof/mxnet,apache/incubator-mxnet,fullfanta/mxnet,dmlc/mxnet,madjam/mxnet,zhreshold/mxnet,pluskid/mxnet,ForkedReposBak/mxnet,ForkedReposBak/mxnet,weleen/mxnet,fullfanta/mxnet,indhub/mxnet,rahul003/mxnet,arikpoz/mxnet,Ldpe2G/mxnet,CodingCat/mxnet,saurabh3949/mxnet,Mega-DatA-Lab/mxnet,wangyum/mxnet,luoyetx/mxnet,ShownX/incubator-mxnet,TuSimple/mxnet,solin319/incubator-mxnet,hpi-xnor/BMXNet,tlby/mxnet,sxjscience/mxnet,crazy-cat/incubator-mxnet,sxjscience/mxnet,hesseltuinhof/mxnet,stefanhenneking/mxnet,Ldpe2G/mxnet,xcgoner/dist-mxnet,eric-haibin-lin/mxnet,hotpxl/mxnet,arikpoz/mxnet,jiajiechen/mxnet,Ldpe2G/mxnet,weleen/mxnet,wangyum/mxnet,indhub/mxnet,arikpoz/mxnet,piiswrong/mxnet,tornadomeet/mxnet,smolix/incubator-mxnet,kkk669/mxnet,jamesliu/mxnet,DR08/mxnet,ykim362/mxnet,danithaca/mxnet,weleen/mxnet,hpi-xnor/BMXNet,wangyum/mxnet,EvanzzzZ/mxnet,weleen/mxnet,apaleyes/mxnet,thirdwing/mxnet,larroy/mxnet,eric-haibin-lin/mxnet,pluskid/mxnet,precedenceguo/mxnet,precedenceguo/mxnet,Mega-DatA-Lab/mxnet,wangyum/mxnet,sergeykolychev/mxnet,dmlc/mxnet,piiswrong/mxnet,sergeykolychev/mxnet,zhreshold/mxnet,DickJC123/mxnet