Update urls.py

Author: GregHydeDartmouth

chp_api/dispatcher/urls.py

@@ -23,6 +23,7 @@
     path('query/', views.query.as_view()),
     path('query', views.query.as_view()),
     path('meta_knowledge_graph/', views.meta_knowledge_graph.as_view()),
+    path('meta_knowledge_graph', views.meta_knowledge_graph.as_view()),
     path('versions/', views.versions.as_view()),
     path('transactions/', views.TransactionList.as_view(), name='transaction-list'),
     path('recent/', views.RecentTransactionList.as_view(), name='recent-transaction-list'),