add repository field
add repository field

...so npm quits complaining

pnagurny/bitcore,eXcomm/bitcore,phplaboratory/bitcore,braydonf/bitcore,genecyber/bitcore,phplaboratory/bitcore,janko33bd/bitcore,MonetaryUnit/bitcore,TOMOAKI12345/bitcore,olalonde/bitcore,bitjson/bitcore,iobond/bitcore,initaldk/bitcore,jcvernaleo/bitcore,initaldk/bitcore,litecoin-project/litecore,iobond/bitcore,bitjson/bitcore,TeamPiggyCoin/PiggyCore,martindale/bitcore,iobond/bitcore,iobond/bitcore,bitpay/bitcore,TeamPiggyCoin/PiggyCore,litecoin-project/litecore,bitjson/bitcore,braydonf/bitcore,bitpay/bitcore,daxxog/clamcore,bitjson/bitcore,TOMOAKI12345/bitcore,maraoz/coinforge,martindale/bitcore,bilthon/bitcore,pnagurny/bitcore,bilthon/bitcore,iobond/bitcore,martindale/fullnode,williamcotton/bitcore,bitpay/bitcore,reddit/fullnode,lekkas/bitcore,GroestlCoin/groestlcore,bitpay/bitcore,MonetaryUnit/bitcore,eordano/bitcore,martindale/bitcore,UdjinM6/bitcore-dash,ryanxcharles/fullnode,ryanxcharles/fullnode,lekkas/bitcore,daxxog/clamcore,genecyber/bitcore,janko33bd/bitcore,adjoinant/bitcore,eXcomm/bitcore,bankonme/bitcore,williamcotton/bitcore,olalonde/bitcore,martindale/bitcore,martindale/fullnode,adjoinant/bitcore,bankonme/bitcore,maraoz/coinforge,jcvernaleo/bitcore,eordano/bitcore