Small edits to the README
Small edits to the README

riyadparvez/whole-program-llvm,travitch/whole-program-llvm,riyadparvez/whole-program-llvm,BenjaminSchubert/whole-program-llvm,SRI-CSL/whole-program-llvm,SRI-CSL/whole-program-llvm,SRI-CSL/whole-program-llvm,riyadparvez/whole-program-llvm,BenjaminSchubert/whole-program-llvm,BenjaminSchubert/whole-program-llvm,SRI-CSL/whole-program-llvm,SRI-CSL/whole-program-llvm,travitch/whole-program-llvm,BenjaminSchubert/whole-program-llvm,travitch/whole-program-llvm,travitch/whole-program-llvm,riyadparvez/whole-program-llvm