added travis image in README
added travis image in README

caitlingoldman/monologue,GapIntelligence/monologue,tam-vo/monologue,GapIntelligence/monologue,abreckner/monologue,paresharma/monologue,GapIntelligence/monologue,bertomartin/monologue,caitlingoldman/monologue,kyle-annen/monologue,abreckner/monologue,jaimerson/monologue,tam-vo/monologue,kyle-annen/monologue,bertomartin/monologue,munirent/monologue,kyle-annen/monologue,abreckner/monologue,jaimerson/monologue,thiesa/monologue,thiesa/monologue,thiesa/monologue,jipiboily/monologue,paresharma/monologue,jipiboily/monologue,jaimerson/monologue,bertomartin/monologue,tam-vo/monologue,caitlingoldman/monologue,paresharma/monologue,munirent/monologue,jipiboily/monologue