Update documentation for mxnet.metric.np (#5977)
Update documentation for mxnet.metric.np (#5977)


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