updated readme
updated readme

colinsf/IBMWatson-QA-Speech,cemoulto/IBMWatson-QA-Speech,colinsf/IBMWatson-QA-Speech,triceam/IBMWatson-QA-Speech,kalesik/IBMWatson-QA-Speech,AbroadLocal/QandA,SidSachdev/IBMWatson-QA-Speech,cemoulto/IBMWatson-QA-Speech,triceam/IBMWatson-QA-Speech,kalesik/IBMWatson-QA-Speech,SidSachdev/IBMWatson-QA-Speech,AbroadLocal/QandA