Update README.md

README.md

@@ -20,7 +20,7 @@ Extraneous elements such as page numbers, headers, and footers have been removed
 
 ## Dataset Structure
 
-The dataset is provided in a multiple Parquet files with the following columns:
+The dataset is provided in multiple Parquet files with the following columns:
 
 - `id`: Internal service ID (not relevant for external use)
 - `publish_year`: The year the document was published (may be missing)