Update README.md

README.md

@@ -27,3 +27,32 @@ configs:
   - split: train
     path: data/train-*
 ---
+
+#### Dataset Card for dwb2023/crisis_prediction_edges
+
+**Purpose**  
+Stores the edges (relationships) between nodes in the crisis prediction graph, representing connections like routes, impacts, and dependencies.
+
+**Schema Description**
+| Field Name | Data Type | Description |
+|------------|-----------|-------------|
+| source_node_id | string | ID of the source node |
+| target_node_id | string | ID of the target node |
+| relationship_type | string | Type of relationship (e.g., "IMPACTS", "ROUTED_THROUGH") |
+| properties_json | string | JSON string containing edge properties |
+| valid_from | timestamp[ms] | When the relationship became valid |
+| valid_to | timestamp[ms] | When the relationship expired/will expire |
+| created_at | timestamp[ms] | When the edge was created |
+
+**Example Entry**
+```python
+{
+    "source_node_id": "HKG_AIRPORT",
+    "target_node_id": "FRA_AIRPORT",
+    "relationship_type": "ROUTED_THROUGH",
+    "properties_json": {"capacity": "500t", "frequency": "daily"},
+    "valid_from": 1706745600000,
+    "valid_to": 1709251200000,
+    "created_at": 1706745600000
+}
+```