doc: Mention other ways to conserve memory on compilation
doc: Mention other ways to conserve memory on compilation

andreaskern/bitcoin,DigitalPandacoin/pandacoin,anditto/bitcoin,particl/particl-core,DigitalPandacoin/pandacoin,namecoin/namecoin-core,nikkitan/bitcoin,fujicoin/fujicoin,tecnovert/particl-core,EthanHeilman/bitcoin,GroestlCoin/bitcoin,pstratem/bitcoin,mruddy/bitcoin,nikkitan/bitcoin,n1bor/bitcoin,gjhiggins/vcoincore,yenliangl/bitcoin,wellenreiter01/Feathercoin,gjhiggins/vcoincore,jambolo/bitcoin,ajtowns/bitcoin,vertcoin/vertcoin,qtumproject/qtum,domob1812/bitcoin,sstone/bitcoin,mitchellcash/bitcoin,MeshCollider/bitcoin,GroestlCoin/bitcoin,jtimon/bitcoin,jtimon/bitcoin,achow101/bitcoin,MarcoFalke/bitcoin,dscotese/bitcoin,jlopp/statoshi,midnightmagic/bitcoin,namecoin/namecoin-core,pataquets/namecoin-core,jtimon/bitcoin,ElementsProject/elements,JeremyRubin/bitcoin,pstratem/bitcoin,gjhiggins/vcoincore,Xekyo/bitcoin,tjps/bitcoin,andreaskern/bitcoin,pstratem/bitcoin,tecnovert/particl-core,rnicoll/bitcoin,vertcoin/vertcoin,kallewoof/bitcoin,domob1812/bitcoin,CryptArc/bitcoin,anditto/bitcoin,apoelstra/bitcoin,MarcoFalke/bitcoin,pstratem/bitcoin,GroestlCoin/GroestlCoin,mm-s/bitcoin,tecnovert/particl-core,tjps/bitcoin,peercoin/peercoin,alecalve/bitcoin,cdecker/bitcoin,Sjors/bitcoin,apoelstra/bitcoin,sipsorcery/bitcoin,pstratem/bitcoin,namecoin/namecoin-core,jambolo/bitcoin,jnewbery/bitcoin,qtumproject/qtum,kallewoof/bitcoin,jambolo/bitcoin,vertcoin/vertcoin,jamesob/bitcoin,peercoin/peercoin,GroestlCoin/bitcoin,CryptArc/bitcoin,FeatherCoin/Feathercoin,qtumproject/qtum,domob1812/bitcoin,litecoin-project/litecoin,nikkitan/bitcoin,sstone/bitcoin,mruddy/bitcoin,CryptArc/bitcoin,andreaskern/bitcoin,MeshCollider/bitcoin,litecoin-project/litecoin,anditto/bitcoin,instagibbs/bitcoin,bitcoinsSG/bitcoin,Sjors/bitcoin,bitcoinknots/bitcoin,gjhiggins/vcoincore,yenliangl/bitcoin,jambolo/bitcoin,pstratem/bitcoin,FeatherCoin/Feathercoin,peercoin/peercoin,prusnak/bitcoin,fanquake/bitcoin,ahmedbodi/vertcoin,cdecker/bitcoin,lateminer/bitcoin,mitchellcash/bitcoin,wellenreiter01/Feathercoin,mitchellcash/bitcoin,monacoinproject/monacoin,domob1812/namecore,bitcoin/bitcoin,domob1812/bitcoin,namecoin/namecoin-core,apoelstra/bitcoin,cdecker/bitcoin,namecoin/namecore,jonasschnelli/bitcoin,wellenreiter01/Feathercoin,alecalve/bitcoin,tecnovert/particl-core,lateminer/bitcoin,jtimon/bitcoin,cdecker/bitcoin,AkioNak/bitcoin,jlopp/statoshi,dscotese/bitcoin,jonasschnelli/bitcoin,EthanHeilman/bitcoin,jnewbery/bitcoin,midnightmagic/bitcoin,instagibbs/bitcoin,FeatherCoin/Feathercoin,mm-s/bitcoin,sstone/bitcoin,instagibbs/bitcoin,peercoin/peercoin,wellenreiter01/Feathercoin,instagibbs/bitcoin,domob1812/bitcoin,yenliangl/bitcoin,tecnovert/particl-core,namecoin/namecoin-core,particl/particl-core,practicalswift/bitcoin,pataquets/namecoin-core,prusnak/bitcoin,MarcoFalke/bitcoin,ElementsProject/elements,MarcoFalke/bitcoin,sipsorcery/bitcoin,DigitalPandacoin/pandacoin,namecoin/namecore,GroestlCoin/GroestlCoin,achow101/bitcoin,bitcoin/bitcoin,domob1812/bitcoin,tjps/bitcoin,bitcoinsSG/bitcoin,jnewbery/bitcoin,alecalve/bitcoin,jamesob/bitcoin,bitcoin/bitcoin,fanquake/bitcoin,bitcoinknots/bitcoin,jamesob/bitcoin,Xekyo/bitcoin,mm-s/bitcoin,rnicoll/bitcoin,DigitalPandacoin/pandacoin,MeshCollider/bitcoin,ahmedbodi/vertcoin,alecalve/bitcoin,MeshCollider/bitcoin,practicalswift/bitcoin,lateminer/bitcoin,n1bor/bitcoin,practicalswift/bitcoin,JeremyRubin/bitcoin,MarcoFalke/bitcoin,jambolo/bitcoin,bitcoinknots/bitcoin,fujicoin/fujicoin,pataquets/namecoin-core,sstone/bitcoin,mitchellcash/bitcoin,apoelstra/bitcoin,bitcoin/bitcoin,achow101/bitcoin,rnicoll/bitcoin,mitchellcash/bitcoin,fanquake/bitcoin,jambolo/bitcoin,rnicoll/dogecoin,sipsorcery/bitcoin,bitcoin/bitcoin,monacoinproject/monacoin,JeremyRubin/bitcoin,midnightmagic/bitcoin,jamesob/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,fujicoin/fujicoin,mruddy/bitcoin,namecoin/namecore,anditto/bitcoin,bitcoin/bitcoin,litecoin-project/litecoin,midnightmagic/bitcoin,qtumproject/qtum,mm-s/bitcoin,jtimon/bitcoin,peercoin/peercoin,instagibbs/bitcoin,litecoin-project/litecoin,qtumproject/qtum,EthanHeilman/bitcoin,kallewoof/bitcoin,ahmedbodi/vertcoin,jonasschnelli/bitcoin,tjps/bitcoin,particl/particl-core,Xekyo/bitcoin,bitcoinsSG/bitcoin,andreaskern/bitcoin,lateminer/bitcoin,pataquets/namecoin-core,qtumproject/qtum,nikkitan/bitcoin,particl/particl-core,bitcoinsSG/bitcoin,ahmedbodi/vertcoin,jamesob/bitcoin,rnicoll/dogecoin,ahmedbodi/vertcoin,mruddy/bitcoin,andreaskern/bitcoin,dscotese/bitcoin,ElementsProject/elements,mm-s/bitcoin,JeremyRubin/bitcoin,Sjors/bitcoin,nikkitan/bitcoin,andreaskern/bitcoin,mitchellcash/bitcoin,ahmedbodi/vertcoin,GroestlCoin/bitcoin,domob1812/namecore,DigitalPandacoin/pandacoin,ElementsProject/elements,Sjors/bitcoin,mm-s/bitcoin,GroestlCoin/GroestlCoin,bitcoinsSG/bitcoin,prusnak/bitcoin,namecoin/namecore,yenliangl/bitcoin,jamesob/bitcoin,JeremyRubin/bitcoin,GroestlCoin/GroestlCoin,ElementsProject/elements,fanquake/bitcoin,yenliangl/bitcoin,vertcoin/vertcoin,fujicoin/fujicoin,practicalswift/bitcoin,tjps/bitcoin,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