README: state exact repo count (122) and range

README.md

@@ -19,7 +19,7 @@ individual JPEG files for browser access.
 - **Manifest:** `manifest.parquet` — columns: `key`, `image_url`, `source_url`, `caption`,
   `width`, `height`, `original_width`, `original_height`, `shard`, `repo`, `path`
 
-Part of `Neomi26/cc12m-images-NNN` series (~131 repos total).
+Part of `Neomi26/cc12m-images-*` series — 122 repos, from `cc12m-images-000` to `cc12m-images-121`.
 Global index: [`Neomi26/cc12m-images-index`](https://huggingface.co/datasets/Neomi26/cc12m-images-index)
 
 Original dataset: [pixparse/cc12m-wds](https://huggingface.co/datasets/pixparse/cc12m-wds)