Update README

README.md

@@ -14,13 +14,13 @@ In short, original images are cropped according to their AOIs, and resized to 22
 ## Data format
 
 Each data sample follows following file naming scheme.
-`<split>/<class>/<class>_<sequence-id>/<class>_<aoi-id>/<class>_<sequence-id>_<index>_rgb.<jpg-or-json`. Each sample consists in one image (JPEG) and one metadata file (JSON). The path without extension constitutes the sample ID.
+`<split>/<class>/<class>_<sequence-id>/<class>_<aoi-id>/<class>_<sequence-id>_<index>_rgb.<jpg-or-json>`. Each sample consists in one image (JPEG) and one metadata file (JSON). The path without extension constitutes the sample ID.
 
 Images are 8-bit 224×224 pixels compressed JPEGs.
 
 The JSON metadata file format follow the original data. For metadata fields whose value may be different from the original, the original key-values are kept under the field named "orig". Metadata keys are best documented in the [Christie et al. (2018)](https://arxiv.org/abs/1711.07846) - Appendix I.
 
-**Tarballs.** we provide the data archived across multiple tarballs named `<split>-<modality>.tar.gz`. For instance, the train images are in `train-images.tar.gz` and metadata in `train-metadata.tar.gz`.
+We provide the data archived across multiple tarballs named `<split>-<images-or-metadata>.tar.gz`. For instance, the train images are in `train-images.tar.gz` and metadata in `train-metadata.tar.gz`.
 
 ## Data splits