:book: add installation instructions
:book: add installation instructions

j0an/frontend-perf,DavidHughes/frontend-perf,j0an/frontend-perf,fourkitchens/frontend-perf,fourkitchens/frontend-perf,DavidHughes/frontend-perf,j0an/frontend-perf,DavidHughes/frontend-perf,fourkitchens/frontend-perf,j0an/frontend-perf