add license field to package.json
add license field to package.json

close #1862

jinghuizhai/express,auth0/express,supasate/express,andriyl/express,corporateanon/express,Riokai/express,frootloops/express,bercanozcan/express,ericlu88/express,hanqingnan/express,yinhe007/express,danielrohers/express,xiaofuzi/express,qitianchan/express,Haru1990/express,KodkodGates/express,WangCao/express,nodejs-camp/booklog-jason,rupanjanbaidya/express,v10258/express,dreamingblackcat/express,llwanghong/express,Haru1990/express,friederbluemle/express,drzorm/express,chuym/express,nodejs-camp/booklog-chle,YR/express,emvici/emvici-reqres-tify,ci-test2/express,swarajgiri/express,nodejs-camp/booklog-tonebeta-update,fuse-mars/express,saisai/express,1verson/express,vidyar/express,fanzetao/express,buildsample/express,corporateanon/express,jimmykuo/express,shanawarkhan/express,ralic/express,jenalgit/express,KodkodGates/express,philxia/ex-tst-framework,v10258/express,dsupera13/express,corporateanon/express,mimaidms/express,ZackBotkin/express,devgeniem/express,topaxi/express,mimaidms/express,1amageek/express,dafabulousteach/express,RanadeepPolavarapu/express,za-creature/express,pathirana/express,stewartml/express,fuse-mars/express,youprofit/express,auth0/express,evilboss/express,nodejs-camp/booklog-tonebeta,nodejs-camp/booklog-homa,svnh/express,listepo/express,tianhengzhou/express,VegeChou/express,nodejs-camp/booklog-linkchen,stevemao/express,srichatala/express,lian774739140/express,hdngr/express,Talkyunyun/express,FernAbby/express,qitianchan/express,samuelcastro/express,robomc/express,dongseop/express,stewartml/express,VegeChou/express,blainsmith/express,dieuly/express,RickyDan/express,supasate/express,juanpastas/express,wtony/express,bjrmatos/express,strongloop/express,LestaD/express,WebStyle/express,kunalpict/express,maraoz/express,svnh/express,udhayam/express,lmtdit/express,hacksparrow/express,junxiong/express,fanzetao/express,blairzhang/express,jinghuizhai/express,simudream/express,Riokai/express,saisai/express,hdngr/express,abdulhannanali/express,dotnetCarpenter/express,TestingCI/express,heicx/express,nodejs-camp/booklog-leo,Ju2ender/express,jimmykuo/express,jinghuizhai/express,HXYNODE/express,ifraixedes/express,gretac/express,hl198181/express,kubrickology/express,hightechweb/express,nodejs-camp/booklog-ausir,Kevnz/express,abdulhannanali/express,hanweifish/express,stoskov/express,kubrickology/express,nodejs-camp/booklog-jollen,XueQian/express,kentcdodds/express,JulyZhu/express,buildsample/express,nathan818fr/express,nodejs-camp/booklog-chenyou,leiqiang75/express,supasate/express,igarciaes/express,MoraLin/mora-test,igarciaes/express,featurist/express,HXYNODE/express,nodejs-camp/booklog-ben,Flip120/express,Faiz7412/express,neomadara/express,simplyianm/express,nodejs-camp/booklog-jollen,lemelon/express,dafabulousteach/express,abhi3/express,evanlucas/express,mauricionr/express,nodejs-camp/booklog-polo,evanlucas/express,dotnetCarpenter/express,sujianping/express,lmtdit/express,v10258/express,fakedarren/express,hanqingnan/express,christopheranderson/express,Flip120/express,1amageek/express,nodejs-camp/booklog-ausir,codeforgeek/express,nodejs-camp/booklog-s890506,svnh/express,dieuly/express,blakeembrey/express,1verson/express,vidyar/express,microlv/express,countdracular/express,dsupera13/express,Eric-Vandenberg/express,dafabulousteach/express,r14r-work/fork_express_master,jenia0jenia/express,angelsanz/express,udhayam/express,jymsy/express,leiqiang75/express,benshiue/booklog-ben,nodejs-camp/booklog-polo,hightechweb/express,blakeembrey/express,elkingtonmcb/express,dongooo/express,abhi3/express,mikewesthad/express,michaeljunlove/express,rgrove/express,baldurh/express,Eric-Vandenberg/express,angelsanz/express,nodejs-camp/booklog-archer,hpcslag/express,adjohnson916/express,tjmehta/express,wesleytodd/express,jenalgit/express,ZackBotkin/express,gretac/express,XueQian/express,Matrixbirds/express,jenia0jenia/express,mcanthony/express,awronka/express,grigorkh/express,Faiz7412/express,qq645381995/express,danielrohers/express,stewartml/express,stevemao/express,nodejs-camp/booklog-ansaga,ericlu88/express,sujianping/express,Talkyunyun/express,drzorm/express,sarvex/express,kentcdodds/express,benshiue/booklog-ben,dreamingblackcat/express,bercanozcan/express,PeterWangPo/express,chrisinajar/express,dongooo/express,junxiong/express,blakeembrey/express,blairzhang/express,tyler-johnson/express,luxe-eng/valet-express.express,vnglst/express,robomc/express,Jonekee/express,nodejs-camp/booklog-homa,LestaD/express,juandav/express,ci-test2/express,nodejs-camp/booklog-mora,Lexine/express,hl198181/express,vnglst/express,Ivanwangcy/express,evilboss/express,wtony/express,neomadara/express,qq645381995/express,philxia/ex-tst-framework,youprofit/express,dgofman/express,wtony/express,nodejs-camp/booklog-linkchen,pshomov/express,za-creature/express,gdeividas/express,RickyDan/express,xtidt/express,expressjs/express,evilboss/express,fineday32/express,philxia/ex-tst-framework,heicx/express,sibura/express,LestaD/express,WangCao/express,dongseop/express,swarajgiri/express,stevemao/express,luxe-eng/valet-express.express,Kevnz/express,r14r/fork_express_master,simudream/express,christopheranderson/express,WangCao/express,nodejs-camp/booklog-Zak,dongseop/express,coreypnorris/express,micha149/express,luxe-eng/valet-express.express,hacksparrow/express,abhi3/express,nbeydoon/express,codeforgeek/express,nodejs-camp/booklog-tonebeta-update,blairzhang/express,topaxi/express,jymsy/express,hdngr/express,kylezhang/express,ahdinosaur/express,vnglst/express,swstack/express,listepo/express,ifraixedes/express,pshomov/express,chrisinajar/express,vinodhalaharvi/express,cflynn07/express,vidyar/express,fineday32/express,soyuka/express,gnowoel/express,RanadeepPolavarapu/express,nodejs-camp/booklog-tonebeta,lian774739140/express,MoraLin/mora-test,chrisinajar/express,kylezhang/express,jenia0jenia/express,sarvex/express,PeterWangPo/express,demohi/express,samuelcastro/express,ci-test2/express,kylezhang/express,TestingCI/express,nodejs-camp/booklog-mora,elkingtonmcb/express,vinodhalaharvi/express,fakedarren/express,weilixia/express,thepont/express,za-creature/express,BaggersIO/express,shanawarkhan/express,WebStyle/express,mauricionr/express,xiaofuzi/express,devgeniem/express,weilixia/express,rgrove/express,microlv/express,nathan818fr/express,xiaofuzi/express,dgofman/express,nbeydoon/express,nodejs-camp/booklog-s890506,junxiong/express,nodejs-camp/booklog-ben,flomotlik/express,buildsample/express,Flip120/express,nodejs-camp/booklog-archer,nodejs-camp/booklog-ansaga,devgeniem/express,blainsmith/express,strongloop/express,maraoz/express,llwanghong/express,stoskov/express,hpcslag/express,bercanozcan/express,grigorkh/express,mcanthony/express,1amageek/express,nodejs-camp/booklog-chle,mikewesthad/express,michaeljunlove/express,wesleytodd/express,ZackBotkin/express,coreypnorris/express,JulyZhu/express,andrejewski/express,coreypnorris/express,FernAbby/express,pstrike/express,chuym/express,andriyl/express,nodejs-camp/booklog-Zak,yinhe007/express,ahdinosaur/express,fakedarren/express,soyuka/express,micha149/express,thepont/express,tianhengzhou/express,smcmurray/express,nodejs-camp/booklog-polo,michaeljunlove/express,xtidt/express,andrejewski/express,BaggersIO/express,stoskov/express,tjmehta/express,countdracular/express,qq645381995/express,qitianchan/express,demohi/express,CrazySherman/express,juandav/express,flomotlik/express,simplyianm/express,abdulhannanali/express,youprofit/express,aifeld/express,kunalpict/express,Lexine/express,listepo/express,BaggersIO/express,Faiz7412/express,juanpastas/express,pathirana/express,btleffler/express,caiocutrim/express,r14r-work/fork_express_master,angelsanz/express,featurist/express,friederbluemle/express,YR/express,XueQian/express,sibura/express,smcmurray/express,topaxi/express,CrazySherman/express,awronka/express,cflynn07/express,Ju2ender/express,gdeividas/express,adjohnson916/express,Riokai/express,Eric-Vandenberg/express,hanweifish/express,frootloops/express,nodejs-camp/booklog-leo,PUSEN/express,btleffler/express,sarvex/express,rupanjanbaidya/express,smcmurray/express,grigorkh/express,expressjs/express,featurist/express,bjrmatos/express,caiocutrim/express,methuz/express,maraoz/express,Matrixbirds/express,aifeld/express,lmtdit/express,kunalpict/express,dreamingblackcat/express,vinodhalaharvi/express,baldurh/express,srichatala/express,gnowoel/express,dotnetCarpenter/express,Ju2ender/express,hpcslag/express,r14r/fork_express_master,Ivanwangcy/express,simudream/express,Jonekee/express,swarajgiri/express,nodejs-camp/booklog-chenyou,methuz/express,philxia/ex-tst-framework,lemelon/express,KodkodGates/express,jenalgit/express,pstrike/express,friederbluemle/express,gnowoel/express,swstack/express,ralic/express,nbeydoon/express,PUSEN/express,tyler-johnson/express,nodejs-camp/booklog-jason,TestingCI/express