Fix direct predict usage: output_directory is positional

README.md

@@ -53,12 +53,16 @@ Pretrained checkpoints and matching YAML configs for
 ```bash
 hf download NKI-AI/direct-e2e-ads-recon-reg --local-dir ./e2e_ads_recon_reg
 
-direct predict <experiment_dir> \
-  --checkpoint ./e2e_ads_recon_reg/vsharp_ads_1d_phase_reg.pt \
+direct predict ./predictions \
   --cfg ./e2e_ads_recon_reg/vsharp_ads_1d_phase_reg.yaml \
+  --checkpoint ./e2e_ads_recon_reg/vsharp_ads_1d_phase_reg.pt \
+  --data-root /path/to/cmrxrecon/data \
   --num-gpus 1
 ```
 
+The first argument is the **output directory** (predictions), not an experiment folder.
+
+
 ## Framework
 
 [DIRECT](https://github.com/NKI-AI/direct) · [NKI-AI](https://huggingface.co/NKI-AI)