Update README.md (#12)

- Update README.md (3dac3e7b1fdfcbc9dc083408ee89d6fdd052a5b3)


Co-authored-by: Chendi Lin <[email protected]>

README.md

@@ -108,11 +108,11 @@ Different levels of polygon counts are adopted in different use cases in the 3D
 After downloading and unzipping, two files are included:
 
 ```
-annotated_500k.json
+annotated_800k.json
 annotated_network.pth
 ```
 
-`annotated_500k.json` contains the annotated results of 500k objects from Objaverse. This will be expanded to cover the whole Objaverse in the near future.
+`annotated_800k.json` contains the annotated results of ~800k objects from Objaverse. This will be expanded to cover the whole Objaverse in the near future.
 `annotated_network.pth` is the pre-trained annotation network weights that can be used to
  annotate customized 3D object dataset. The detailed instruction is included [here](https://github.com/TCXX/ObjaversePlusPlus/blob/main/annotation_model/Readme.md).