Update README.md

README.md

@@ -51,6 +51,8 @@ for example in ds:
 ```
 
 ## Files in raw/:
-- thai_seg_cleaned.tsv  ← CC BY-SA-4.0 (used in train/validation/word_validation)
-- thai_seg.tsv          ← CC BY-SA-4.0
-- thai_sentence_phoneme.csv  ← Apache-2.0 (used in train/validation/sentence_validation)
+  - CC BY-SA-4.0:
+    - thai_seg_cleaned.tsv
+    - thai_seg.tsv
+  - Apache-2.0:
+    - thai_sentence_phoneme.csv