Add short outline to README.md
Add short outline to README.md
jwang98052/incubator-reef,markusweimer/incubator-reef,yingdachen/incubator-reef,tcNickolas/incubator-reef,swlsw/incubator-reef,yunseong/reef,singlis/reef,gyeongin/reef,gyeongin/reef,beysims/reef,dkm2110/veyor,tcNickolas/incubator-reef,yunseong/incubator-reef,dongjoon-hyun/incubator-reef,yingdachen/incubator-reef,dkm2110/veyor,apache/reef,singlis/reef,jsjason/incubator-reef,dongjoon-hyun/incubator-reef,shulmanb/reef,apache/reef,yingdachen/incubator-reef,dkm2110/veyor,jsjason/incubator-reef,markusweimer/incubator-reef,markusweimer/reef,dongjoon-hyun/reef,dongjoon-hyun/reef,anupam128/reef,afchung/incubator-reef,zerg-junior/incubator-reef,apache/reef,yingdachen/incubator-reef,dafrista/incubator-reef,swlsw/incubator-reef,apache/incubator-reef,motus/reef,dafrista/incubator-reef,afchung/incubator-reef,dkm2110/Microsoft-cisl,markusweimer/incubator-reef,DifferentSC/incubator-reef,dkm2110/veyor,jwang98052/incubator-reef,markusweimer/reef,taegeonum/incubator-reef,yunseong/reef,jwang98052/incubator-reef,dkm2110/veyor,shravanmn/reef,taegeonum/incubator-reef,swlsw/incubator-reef,dongjoon-hyun/incubator-reef,dongjoon-hyun/reef,motus/reef,swlsw/incubator-reef,motus/reef,tcNickolas/reef,taegeonum/incubator-reef,motus/reef,dkm2110/Microsoft-cisl,motus/reef,swlsw/incubator-reef,yunseong/reef,anupam128/reef,swlsw/incubator-reef,jwang98052/incubator-reef,jwang98052/incubator-reef,dougmsft/reef,dongjoon-hyun/incubator-reef,nachocano/incubator-reef,apache/reef,anupam128/reef,swlsw/incubator-reef,markusweimer/reef,shravanmn/reef,dafrista/incubator-reef,afchung/incubator-reef,tcNickolas/reef,jsjason/incubator-reef,dkm2110/Microsoft-cisl,dougmsft/reef,dongjoon-hyun/reef,jwang98052/incubator-reef,dongjoon-hyun/reef,dongjoon-hyun/incubator-reef,gyeongin/reef,dkm2110/veyor,beysims/reef,DifferentSC/incubator-reef,singlis/reef,dafrista/incubator-reef,afchung/reef,yunseong/reef,jwang98052/reef,yunseong/incubator-reef,dongjoon-hyun/incubator-reef,yingdachen/incubator-reef,singlis/reef,zerg-junior/incubator-reef,zerg-junior/incubator-reef,afchung/reef,jwang98052/reef,apache/incubator-reef,zerg-junior/incubator-reef,jwang98052/reef,dongjoon-hyun/reef,yunseong/incubator-reef,yunseong/reef,jwang98052/reef,tcNickolas/incubator-reef,dongjoon-hyun/incubator-reef,afchung/incubator-reef,nachocano/incubator-reef,anupam128/reef,gyeongin/reef,apache/incubator-reef,yunseong/incubator-reef,apache/reef,jwang98052/incubator-reef,tcNickolas/incubator-reef,tcNickolas/incubator-reef,shulmanb/reef,afchung/reef,nachocano/incubator-reef,gyeongin/reef,markusweimer/reef,markusweimer/incubator-reef,dougmsft/reef,singlis/reef,jsjason/incubator-reef,dougmsft/reef,nachocano/incubator-reef,motus/reef,dafrista/incubator-reef,jwang98052/reef,shulmanb/reef,yunseong/reef,tcNickolas/reef,afchung/incubator-reef,jsjason/incubator-reef,beysims/reef,shravanmn/reef,taegeonum/incubator-reef,apache/incubator-reef,dkm2110/Microsoft-cisl,shulmanb/reef,nachocano/incubator-reef,gyeongin/reef,nachocano/incubator-reef,shravanmn/reef,shravanmn/reef,yingdachen/incubator-reef,dougmsft/reef,bgchun/incubator-reef,shravanmn/reef,jwang98052/reef,taegeonum/incubator-reef,yunseong/reef,jsjason/incubator-reef,tcNickolas/reef,tcNickolas/reef,bgchun/incubator-reef,DifferentSC/incubator-reef,afchung/reef,apache/reef,apache/incubator-reef,dkm2110/Microsoft-cisl,yingdachen/incubator-reef,dougmsft/reef,bgchun/incubator-reef,markusweimer/incubator-reef,markusweimer/incubator-reef,afchung/reef,zerg-junior/incubator-reef,apache/reef,zerg-junior/incubator-reef,bgchun/incubator-reef,afchung/incubator-reef,afchung/incubator-reef,jsjason/incubator-reef,tcNickolas/reef,shulmanb/reef,taegeonum/incubator-reef,markusweimer/reef,beysims/reef,dkm2110/Microsoft-cisl,beysims/reef,apache/incubator-reef,nachocano/incubator-reef,dkm2110/Microsoft-cisl,dougmsft/reef,yunseong/incubator-reef,DifferentSC/incubator-reef,afchung/reef,markusweimer/incubator-reef,singlis/reef,markusweimer/reef,bgchun/incubator-reef,shulmanb/reef,tcNickolas/reef,tcNickolas/incubator-reef,anupam128/reef,jwang98052/reef,gyeongin/reef,DifferentSC/incubator-reef,motus/reef,zerg-junior/incubator-reef,afchung/reef,DifferentSC/incubator-reef,dafrista/incubator-reef,dkm2110/veyor,shulmanb/reef,yunseong/incubator-reef,singlis/reef,tcNickolas/incubator-reef,apache/incubator-reef,markusweimer/reef,dafrista/incubator-reef,anupam128/reef,anupam128/reef,dongjoon-hyun/reef,shravanmn/reef,DifferentSC/incubator-reef,yunseong/incubator-reef