Add clarification on filter usage

embeddings/README.md

@@ -35,7 +35,7 @@ The `JSON` files were created from the [TreeOfLife-200M catalog](../catalog.parq
 * **Null Value Filtering:** Remove records where `kingdom` or `species` are `null`.
 * **Deduplication:** Rows are deduplicated based on the combination of `kingdom`, `phylum`, `class`, `order`, `family`, `genus`, and `species`. This ensures that each unique taxonomic combination appears exactly once.
     * **Common Name Handling:** Currently, the catalog metadata often contains multiple common names for a single unique taxonomic combination. During processing, **the first English common name encountered** for a given unique taxonomic combination is retained. If English is not available, the first option of any language is used. We plan future improvements to establish a definitive 1-to-1 mapping or a more comprehensive common name strategy.
-* **Corrupted Label Removal:** Records where any rank looked like an ISO-8601 timestamp `(^\d{4}-\d{2}-\d{2}T\d{2}:\d{2})` or the literal strings `true` / `false` are removed. 
+* **Corrupted Label Removal:** Records where any rank looks like a CSV-parsing leak, specifically an ISO-8601 timestamp `(^\d{4}-\d{2}-\d{2}T\d{2}:\d{2})` or the literal strings `true` / `false`, are removed. This was only necessary for the BioCLIP 2.5 Huge JSON.
 
 ### Structure