update README with instructions on how to build
update README with instructions on how to build

DickvdBrink/tslint,nchen63/tslint,nchen63/tslint,nchen63/tslint,prendradjaja/tslint,prendradjaja/tslint,andy-ms/tslint,pocke/tslint,s-panferov/tslint,weswigham/tslint,RyanCavanaugh/tslint,pspeter3/tslint,ScottSWu/tslint,JoshuaKGoldberg/tslint,gscshoyru/tslint,spirosikmd/tslint,Pajn/tslint,GabiGrin/tslint,bolatovumar/tslint,ScottSWu/tslint,berickson1/tslint,marekszala/tslint,liviuignat/tslint,spirosikmd/tslint,andy-hanson/tslint,Kuniwak/tslint,andy-hanson/tslint,andy-hanson/tslint,mprobst/tslint,aciccarello/tslint,IllusionMH/tslint,palantir/tslint,weswigham/tslint,IllusionMH/tslint,vmmitev/tslint,Pajn/tslint,aciccarello/tslint,Nemo157/tslint,pspeter3/tslint,YuichiNukiyama/tslint,berickson1/tslint,gtanner/tslint,RyanCavanaugh/tslint,liviuignat/tslint,Nemo157/tslint,palantir/tslint,lukeapage/tslint,GabiGrin/tslint,bolatovumar/tslint,spirosikmd/tslint,prendradjaja/tslint,YuichiNukiyama/tslint,Kuniwak/tslint,gscshoyru/tslint,GabiGrin/tslint,s-panferov/tslint,marekszala/tslint,mprobst/tslint,IllusionMH/tslint,andy-ms/tslint,pocke/tslint,vmmitev/tslint,palantir/tslint,andy-ms/tslint,mprobst/tslint,Pajn/tslint,lukeapage/tslint,JoshuaKGoldberg/tslint,weswigham/tslint,nikklassen/tslint,berickson1/tslint,bolatovumar/tslint,ScottSWu/tslint,liviuignat/tslint,YuichiNukiyama/tslint,JoshuaKGoldberg/tslint,pspeter3/tslint,s-panferov/tslint,aciccarello/tslint,Kuniwak/tslint,nikklassen/tslint,marekszala/tslint,pocke/tslint,Nemo157/tslint,vmmitev/tslint,gtanner/tslint,RyanCavanaugh/tslint,nikklassen/tslint,DickvdBrink/tslint,gtanner/tslint