Name the SimLingo splits of the normal index

README.md

@@ -176,7 +176,7 @@ Each route folder (`<Town..>/`) contains:
 
 ## Not included
 
-- **SimLingo's PDM-lite data** (`training_1_scenario`, used for Stage-3 fine-tuning and the `normal` index). It is the SimLingo dataset of Wayve Technologies Ltd and is distributed by its authors under their own licence; download it from [SimLingo](https://github.com/RenzKa/simlingo).
+- **SimLingo's PDM-lite data** (`training_1_scenario` for Stage-3 fine-tuning; `training_1_scenario`, `training_3_scenarios` and SimLingo's own `lb1_split` for the `normal` index, see the code repository's [`datasets/README.md`](https://github.com/PervasiveAutonomyLab/PersonaDrive/blob/main/datasets/README.md)). It is the SimLingo dataset of Wayve Technologies Ltd and is distributed by its authors under their own licence; download it from [SimLingo](https://github.com/RenzKa/simlingo).
 - **The FAISS indices and other retrieval artefacts.** Build them from this dataset with the [code repository](https://github.com/PervasiveAutonomyLab/PersonaDrive#3-build-the-retrieval-indices).
 
 ## Citation