Add interface to create and see note sheets

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

note_kfet/urls.py

@@ -21,6 +21,7 @@ urlpatterns = [
     path('activity/', include('activity.urls')),
     path('treasury/', include('treasury.urls')),
     path('wei/', include('wei.urls')),
+    path('sheets/', include('sheets.urls')),
 
     # Include Django Contrib and Core routers
     path('i18n/', include('django.conf.urls.i18n')),