update readme

README.md

@@ -4,9 +4,6 @@ task_categories:
 - tabular-regression
 - time-series-forecasting
 - other
-task_ids:
-- trajectory-modeling
-- car-following-modeling
 tags:
 - autonomous-driving
 - transportation
@@ -14,6 +11,8 @@ tags:
 - vehicle-dynamics
 - csv
 - tabular
+- trajectory-modeling
+- car-following-modeling
 size_categories:
 - 1M<n<10M
 configs:
@@ -142,4 +141,4 @@ This integrated release currently standardizes public data from the following so
 
 These sources cover multiple cities, road environments, and automated driving scenarios. The current repository contains transformed and harmonized trajectory tables derived from those public resources.
 
-<img src="./Dataset.png" alt="OpenPAV-Trajectory overview" width="700">
+<img src="./dataset.jpg" alt="OpenPAV-Trajectory overview" width="700">