Update README.md

README.md

@@ -144,7 +144,7 @@ The dataset is split into shards of 5,000 samples each, named as `train_shard_XX
 Each text is rendered with:
 - Random paper style (Palm Leaf, Pale Palm Leaf, Red Stone, White Stone, Paper)
 - Random background style (No Lines, With Lines, Blurred, With Lines and Noise)
-- Random augmentation (Rotation, Perspective, Coffee Stain, Ink Bleed)
+- Random augmentation (Rotation, Perspective, Stain, Ink Bleed)
 
 ### License