add: linkify travisci badge
add: linkify travisci badge

Cuuuurzel/django-object-actions,dukebody/django-object-actions,goldblatt/django-object-actions,goldblatt/django-object-actions,crccheck/django-object-actions,Cuuuurzel/django-object-actions,dukebody/django-object-actions,crccheck/django-object-actions