Update README.md

Enhanced pcd/ folder description

README.md

@@ -52,7 +52,7 @@ For each object, the raw hyperspectral acquisition includes .dat, .hdr, and prev
 
 ## pcd/
 
-Contains final exported hyperspectral 3D point clouds with 1 million points per object, generated from the pre-trained and fine-tuned models.
+Contains the final exported 3D hyperspectral point clouds (204 bands; 1 million points per object), generated from the fine-tuned models with λ_ang = 0.25 and λ_hsi = 0.75.
 
 ## 🧠 HSI-SC-NeRF Pipeline