Update README.rst
Update README.rst
pinax/pinax-announcements,edx/django-announcements,datafyit/django-announcements,arthur-wsw/pinax-announcements,rizumu/django-announcements,ntucker/django-announcements,ntucker/django-announcements,datafyit/django-announcements,percipient/django-announcements,arthur-wsw/pinax-announcements,rizumu/django-announcements,pinax/django-announcements,percipient/django-announcements,pinax/django-announcements