Update us-unknown-amtrak-gtfs-11.json

Author: emmambd

catalogs/sources/gtfs/schedule/us-unknown-amtrak-gtfs-11.json

@@ -2,6 +2,7 @@
     "mdb_source_id": 11,
     "data_type": "gtfs",
     "provider": "Amtrak",
+    "is_official": "True",
     "location": {
         "country_code": "US",
         "bounding_box": {
@@ -16,4 +17,4 @@
         "direct_download": "https://content.amtrak.com/content/gtfs/GTFS.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-unknown-amtrak-gtfs-11.zip?alt=media"
     }
-}
+}