Normalize tokenization strategy label to wordseg

README.md

@@ -204,7 +204,7 @@ A lightweight, evaluation-ready subset of [CodeSearchNet](https://huggingface.co
 - Auto selection chooses the best strategy per split using retrieval metrics.
 - Strategy types:
   - `transformer`: `Qwen/Qwen3-0.6B` tokenizer
-  - `word_seg`: language-specific word segmentation (`ja`, `zh`, `th`, `ko`)
+  - `wordseg`: language-specific word segmentation (`ja`, `zh`, `th`, `ko`)
   - `stemmer`: `PyStemmer`
   - `whitespace`: `str.split()`