update path to protractor example config to actual one
update path to protractor example config to actual one

rbrcurtis/grunt-protractor-runner,lmacneil/grunt-protractor-runner,rohitkadam19/grunt-protractor-runner,teerapap/grunt-protractor-runner,christian-bromann/grunt-protractor-runner,spinningarrow/grunt-protractor-runner,sullivanpt/grunt-protractor-runner