feat: ticket can now be modified

ticketsystem/urls.py

@@ -1,13 +1,14 @@
 from django.urls import path
 
 from . import views
-from .views import TicketListView, TicketCreateView
+from .views import TicketListView, TicketCreateView, TicketUpdateView
 
 urlpatterns = [
     # /ticketsystem/
     path("", TicketListView.as_view(), name="index"),
     # /ticketsystem/detail/
-    path("<int:ticket_id>/", views.detail, name="detail"),
+    path("<int:pk>/", views.detail, name="detail"),
     # /ticketsystem/new/
     path("new/", TicketCreateView.as_view(), name="create"),
+    path("<int:pk>/modify/", TicketUpdateView.as_view(), name="modify"),
 ]