Update README.rst to fix import error

README.rst

@@ -132,7 +132,7 @@ In ``urls.py``:
 .. code:: python
 
    ...
-   from django.urls import re_path
+   from django.urls import path
    from rest_framework import permissions
    from drf_yasg.views import get_schema_view
    from drf_yasg import openapi