chore: migrate element metadata to card

README.md

@@ -2,19 +2,5 @@
 tags:
 - manako:element_type:detect
 manako:
-  element_type: Detect
-  objects:
-  - big bus
-  - big truck
-  - bus-l-
-  - bus-s-
-  - car
-  - mid truck
-  - small bus
-  - small truck
-  - truck-l-
-  - truck-m-
-  - truck-s-
-  - truck-xl-
-  source: https://universe.roboflow.com/roboflow-100/vehicles-q0x2v
+  objects: []
 ---