doc: Add link to release-process.md in CONTRIBUTING.md
doc: Add link to release-process.md in CONTRIBUTING.md

andreaskern/bitcoin,kallewoof/bitcoin,GroestlCoin/GroestlCoin,Xekyo/bitcoin,tecnovert/particl-core,Xekyo/bitcoin,achow101/bitcoin,anditto/bitcoin,ajtowns/bitcoin,bitcoinsSG/bitcoin,mruddy/bitcoin,bitcoinknots/bitcoin,bitcoin/bitcoin,particl/particl-core,mruddy/bitcoin,fanquake/bitcoin,bitcoin/bitcoin,Xekyo/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,kallewoof/bitcoin,mruddy/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,sstone/bitcoin,jlopp/statoshi,mruddy/bitcoin,tecnovert/particl-core,lateminer/bitcoin,ajtowns/bitcoin,fujicoin/fujicoin,jambolo/bitcoin,dscotese/bitcoin,particl/particl-core,AkioNak/bitcoin,sipsorcery/bitcoin,namecoin/namecore,lateminer/bitcoin,pataquets/namecoin-core,sipsorcery/bitcoin,bitcoinsSG/bitcoin,jambolo/bitcoin,bitcoinsSG/bitcoin,namecoin/namecoin-core,sipsorcery/bitcoin,lateminer/bitcoin,fanquake/bitcoin,domob1812/bitcoin,domob1812/bitcoin,tecnovert/particl-core,namecoin/namecoin-core,bitcoin/bitcoin,namecoin/namecore,ajtowns/bitcoin,domob1812/bitcoin,pataquets/namecoin-core,dscotese/bitcoin,lateminer/bitcoin,ajtowns/bitcoin,namecoin/namecore,jlopp/statoshi,namecoin/namecoin-core,particl/particl-core,bitcoinknots/bitcoin,GroestlCoin/GroestlCoin,fanquake/bitcoin,AkioNak/bitcoin,sstone/bitcoin,instagibbs/bitcoin,kallewoof/bitcoin,fanquake/bitcoin,pataquets/namecoin-core,namecoin/namecore,achow101/bitcoin,dscotese/bitcoin,achow101/bitcoin,sstone/bitcoin,ajtowns/bitcoin,instagibbs/bitcoin,pataquets/namecoin-core,bitcoin/bitcoin,AkioNak/bitcoin,GroestlCoin/bitcoin,jlopp/statoshi,jambolo/bitcoin,GroestlCoin/bitcoin,GroestlCoin/bitcoin,namecoin/namecore,fujicoin/fujicoin,anditto/bitcoin,kallewoof/bitcoin,jamesob/bitcoin,fanquake/bitcoin,lateminer/bitcoin,jamesob/bitcoin,Xekyo/bitcoin,achow101/bitcoin,jamesob/bitcoin,namecoin/namecore,particl/particl-core,andreaskern/bitcoin,anditto/bitcoin,jlopp/statoshi,kallewoof/bitcoin,mruddy/bitcoin,andreaskern/bitcoin,sipsorcery/bitcoin,anditto/bitcoin,bitcoinknots/bitcoin,bitcoin/bitcoin,bitcoinsSG/bitcoin,bitcoinsSG/bitcoin,fujicoin/fujicoin,fanquake/bitcoin,jlopp/statoshi,tecnovert/particl-core,anditto/bitcoin,instagibbs/bitcoin,kallewoof/bitcoin,andreaskern/bitcoin,sipsorcery/bitcoin,sstone/bitcoin,andreaskern/bitcoin,GroestlCoin/bitcoin,achow101/bitcoin,fujicoin/fujicoin,anditto/bitcoin,GroestlCoin/bitcoin,sstone/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,bitcoinsSG/bitcoin,jambolo/bitcoin,fujicoin/fujicoin,andreaskern/bitcoin,pataquets/namecoin-core,tecnovert/particl-core,jamesob/bitcoin,tecnovert/particl-core,jamesob/bitcoin,bitcoinknots/bitcoin,instagibbs/bitcoin,domob1812/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,domob1812/bitcoin,particl/particl-core,dscotese/bitcoin,AkioNak/bitcoin,instagibbs/bitcoin,dscotese/bitcoin,AkioNak/bitcoin,namecoin/namecoin-core,jambolo/bitcoin,pataquets/namecoin-core,GroestlCoin/GroestlCoin,particl/particl-core,achow101/bitcoin,GroestlCoin/GroestlCoin,dscotese/bitcoin,instagibbs/bitcoin,bitcoinknots/bitcoin,domob1812/bitcoin,jamesob/bitcoin,lateminer/bitcoin,jlopp/statoshi,AkioNak/bitcoin,namecoin/namecoin-core,GroestlCoin/bitcoin,Xekyo/bitcoin,bitcoin/bitcoin,sstone/bitcoin,GroestlCoin/GroestlCoin