Update JSONModel.m
Update JSONModel.m

Using code that has existed.
SatanWoo/JSONModel,zwcshy/JSONModel,yunzhongyoulong/JSONModel,SampleLiao/JSONModel,dbachrach/JSONModel,zwcshy/JSONModel,jianwoo/JSONModel,jsonmodel/jsonmodel,zhou18520786640/JSONModel,CareEvolution/JSONModel,ramoslin02/JSONModel,xunan623/JSONModel,billinghamj/JSONModel,izrie/JSONModel,huiping192/JSONModel,chenkaige/JSONModel,NiuMengFei/JSONModel,kerrmarin/jsonmodel,iwakevin/JSONModel,dalu93/JSONModel,billinghamj/JSONModel,LiuShulong/JSONModel,yarec/JSONModel,ernestopino/JSONModel,youprofit/JSONModel,cczallen/JSONModel,hfossli/JSONModel,db42/JSONModel,xxclouddd/JSONModel,SummerHF/JSONModel,MaWenxing/JSONModel,liwangbest/JSONModel,icanzilb/JSONModel,johnmyqin/JSONModel,scottdinggo/JSONModel,redlinesolutions/JSONModel,liuyujing/JSONModel,jianwoo/JSONModel,ThirakornP/JSONModel,AlJaMa/JSONModel,SanjoDeundiak/JSONModel,TerryAsh/JSONModel,SongYuJie1989/JSONModel,MellongLau/JSONModel