README.rst: add travis result logo
README.rst: add travis result logo

enovance/edeploy,redhat-cip/edeploy,redhat-cip/edeploy,enovance/edeploy,lebauce/edeploy,lebauce/edeploy,enovance/edeploy,lebauce/edeploy,lebauce/edeploy,redhat-cip/edeploy,enovance/edeploy,redhat-cip/edeploy