add sessions stats

rowers/urls.py

@@ -275,6 +275,7 @@ urlpatterns = [
             views.instroke_data, name='instroke_data'),
     re_path(r'^exportallworkouts/?/$', views.workouts_summaries_email_view,
             name='workouts_summaries_email_view'),
+    path('sessionstats/', views.sessions_stats, name='sessions_stats'),
     path('failedjobs/', views.failed_queue_view, name='failed_queue_view'),
     path('sleep/', views.sleep_view, name='sleep_view'),
     path('filmdeaths/', views.filmdeaths_view, name='filmdeaths_view'),