Update README.md

README.md

@@ -47,7 +47,7 @@ Add the 3DGrid-VQGAN `pre-trained weights.pt` to the `data/checkpoints/pretraine
 data/
 └── checkpoints/
     └── pretrained/
-        └── VQGAN_43.pt
+        └── 3DGrid-VQGAN_43.pt
 ```
 
 ### Replicating Conda Environment