Fix incorrect dataset size in README

README.md

@@ -16,7 +16,7 @@ WikiRAG-TR is a dataset of 6K (5999) question and answer pairs which synthetical
 
 ## Dataset Information
 - **Number of Instances**: 5999 (5725 synthetically generated question-answer pairs, 274 augmented negative samples)
-- **Dataset Size**: 1.2 MB
+- **Dataset Size**: 20.5 MB
 - **Language**: Turkish
 - **Dataset License**: apache-2.0
 - **Dataset Category**: Text2Text Generation