Update browsable-api.md (#9509)

* Update browsable-api.md

Deprecated url(), use re_path(). Show imports.

* Update docs/topics/browsable-api.md

* Update docs/topics/browsable-api.md

---------

Co-authored-by: Asif Saif Uddin <[email protected]>

Author: rafaelgramoschi

docs/topics/browsable-api.md

@@ -20,9 +20,11 @@ By default, the API will return the format specified by the headers, which in th
 To quickly add authentication to the browesable api, add a routes named `"login"` and `"logout"` under the namespace `"rest_framework"`. DRF provides default routes for this which you can add to your urlconf:
 
 ```python
+from django.urls import include, path
+
 urlpatterns = [
     # ...
-    url(r"^api-auth/", include("rest_framework.urls", namespace="rest_framework"))
+    path("api-auth/", include("rest_framework.urls", namespace="rest_framework"))
 ]
 ```