Update README.md for __VLAC2_FRAMES_ROOT__ placeholder

README.md

@@ -40,7 +40,7 @@ python scripts/extract_vlac2_release_frames.py --release-root /path/to/vlac2_rel
 
 If `--output-root` is not specified, extracted frames are written to `/path/to/vlac2_release/_extracted_frames/`, which is created automatically by the script.
 
-3. Use the benchmark files for training or evaluation. Frame paths in the JSONs use the prefix `__VLAC2_RELEASE_ROOT__/_extracted_frames/...`. Replace `__VLAC2_RELEASE_ROOT__` with the absolute path of the downloaded `VLAC2-Benchmark` directory itself, not with the path to `_extracted_frames/`. For example, if the repository root is `/data/VLAC2-Benchmark`, then `__VLAC2_RELEASE_ROOT__/_extracted_frames/...` becomes `/data/VLAC2-Benchmark/_extracted_frames/...`.
+3. Use the benchmark files for training or evaluation. Frame paths in the JSONs use the prefix `__VLAC2_FRAMES_ROOT__/...`. Replace `__VLAC2_FRAMES_ROOT__` with the absolute path of the actual extracted-frame directory. For example, if extracted frames are written to `/data/VLAC2-Benchmark/_extracted_frames`, then `__VLAC2_FRAMES_ROOT__/ARX-data/...` becomes `/data/VLAC2-Benchmark/_extracted_frames/ARX-data/...`. If you choose a custom `--output-root`, substitute that directory instead.
 
 ## Notes