updated readme to show travis build status
updated readme to show travis build status

fayndee/cucumber-reporting,aleitamar/cucumber-reporting,aleitamar/cucumber-reporting,fayndee/cucumber-reporting,seanBucholtz/cucumber-reporting,damianszczepanik/cucumber-reporting,damianszczepanik/cucumber-reporting,aleitamar/cucumber-reporting,fayndee/cucumber-reporting