Update README.md

README.md

@@ -18,6 +18,8 @@ In actual object manipulation, the orientation of the object is also a very impo
 Therefore, we proposed a new 6-DoF spatial perception benchmark dataset for evaluating the model's reasoning capabilities in position, orientation, and position-orientation relationships. 
 We evaluated existing spatial perception models on this benchmark dataset.
 
+The evaluation baseline is SoFar, a 6-DoF system for spatial reasoning and robotic manipulation.
+
 Download the [images.zip](https://huggingface.co/datasets/qizekun/6DoF-SpatialBench/blob/main/images.zip) and extract it to `./datasets/6dof_spatialbench/`.
 The overall directory structure should be:
 ```