remove crate.io from docs
remove crate.io from docs

ricardoanjinho/django-rest-social-auth,skolsuper/django-rest-social-auth,st4lk/django-rest-social-auth,ricardoanjinho/django-rest-social-auth,ricardoanjinho/django-rest-social-auth,skolsuper/django-rest-social-auth,skolsuper/django-rest-social-auth,st4lk/django-rest-social-auth,skolsuper/django-rest-social-auth,ricardoanjinho/django-rest-social-auth,st4lk/django-rest-social-auth