chore(readme): link to travis icon of the master branch
chore(readme): link to travis icon of the master branch

rjokelai/parkandrideAPI,jpaajarv/parkandrideAPI,jpaajarv/parkandrideAPI,rjokelai/parkandrideAPI,rjokelai/parkandrideAPI,jpaajarv/parkandrideAPI,jpaajarv/parkandrideAPI,rjokelai/parkandrideAPI