Minor clarification on json-c in INSTALL docs
Minor clarification on json-c in INSTALL docs

shakenetwork/zmap,unixfreaxjp/zmap,zmap/zmap,unixfreaxjp/zmap,unixfreaxjp/zmap,eacha/zmap,djeraseit/zmap,tdi/zmap,KeelanArrendale/zmap,potatozhao/zmap,3L3N4/zmap,scarito/zmap,potatozhao/zmap,tdi/zmap,zmap/zmap,zhuyue1314/zmap,zhuyue1314/zmap,scarito/zmap,scarito/zmap-android,potatozhao/zmap,coolacid/zmap,coolacid/zmap,KeelanArrendale/zmap,djeraseit/zmap,potatozhao/zmap,zmap/zmap,KeelanArrendale/zmap,BobuSumisu/zmap,KeelanArrendale/zmap,zhuyue1314/zmap,cicku/zmap,3L3N4/zmap,unixfreaxjp/zmap,potatozhao/zmap,3L3N4/zmap,tdi/zmap,shakenetwork/zmap,scarito/zmap-android,cicku/zmap,zhuyue1314/zmap,eacha/zmap,eacha/zmap,scarito/zmap-android,zhuyue1314/zmap,coolacid/zmap,cicku/zmap,BobuSumisu/zmap,willscott/zmap,willscott/zmap,unixfreaxjp/zmap,eacha/zmap,coolacid/zmap,eacha/zmap,scarito/zmap,3L3N4/zmap,BobuSumisu/zmap,willscott/zmap,BobuSumisu/zmap,scarito/zmap,tdi/zmap,scarito/zmap,scarito/zmap-android,BobuSumisu/zmap,cicku/zmap,djeraseit/zmap,coolacid/zmap,shakenetwork/zmap,willscott/zmap,3L3N4/zmap,shakenetwork/zmap,djeraseit/zmap,cicku/zmap,djeraseit/zmap,shakenetwork/zmap,willscott/zmap,tdi/zmap,KeelanArrendale/zmap