Update README.md

README.md

@@ -42,7 +42,7 @@ pip install -e .
 ## 2. Inference 
 
 
-#### 2.1 Create a folder (e.g., nnUNet_eval) and rename all .ct files and put them in it.
+#### 2.1 Create a folder (e.g., nnUNet_eval), rename all your ct files and put them in the folder.
 
 ```bash
 nnUNet_eval/