python - Django adds "index" to empty url

Question

I am just learning Django. I can't understand why "index" is being added to the empty URL. I need the address to be http://127.0.0.1:8000/, but in the address bar it immediately changes to http://127.0.0.1:8000/index/. However, if I enter http: // localhost: 8000 / there are no such problems.

urls.py

from django.contrib import admin
from django.urls import path
from django.conf.urls.static import static
from django.conf import settings
from django.urls import include
from about import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('about.urls')),
    path('ckeditor/', include('ckeditor_uploader.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

about app urls

from django.urls import path, re_path
from django.views.generic import RedirectView
from . import views

urlpatterns = [
    path('', views.index, name='index'), 
]

Answer 1

The solution was very simple, it was necessary to clear the browser cache :)