Update data/embeddings/bioconceptvec_fasttext/README.md

data/embeddings/bioconceptvec_fasttext/README.md

@@ -60,8 +60,7 @@ This embedding represents BioConceptVec gene concepts using the fastText trainin
 
 ### Mapping and processing decisions
 
-The same strict single-Entrez mapping rule as BioConceptVec-CBOW was used.
-
+Only BioConceptVec gene concepts with a single Entrez identifier were used. Non-gene concepts, multi-Entrez concepts, and ambiguous Entrez IDs were excluded. Accepted Entrez IDs were mapped through map_entrez_ids_all in the enriched master table. Duplicate source rows mapping to the same final gene were averaged.
 ### Processing workflow
 
 For this embedding: