Refresh README — uniform WindyWord template with WER tier + dialect notes

README.md

@@ -4,7 +4,7 @@ tags:
 - automatic-speech-recognition
 - whisper
 - windyword
-- zh
+- chinese
 - zh
 library_name: transformers
 pipeline_tag: automatic-speech-recognition
@@ -12,9 +12,9 @@ language:
 - zh
 ---
 
-# WindyWord.ai STT — Zh Lingua (CPU INT8 (CTranslate2))
+# WindyWord.ai STT — Chinese (Mandarin) Lingua (CPU INT8 (CTranslate2))
 
-**Transcribes Zh speech (Unknown).**
+**Transcribes Chinese (Mandarin) speech (Sino-Tibetan > Sinitic).**
 
 ## Quality
 
@@ -22,7 +22,7 @@ language:
 
 ## About this variant
 
-This is the **ct2-int8** deployment format of our Zh Lingua STT model. Load it via the `ct2-int8/` subfolder.
+This is the **ct2-int8** deployment format of our Chinese (Mandarin) Lingua STT model. Load it via the `ct2-int8/` subfolder.
 
 Part of the [WindyWord.ai](https://windyword.ai) STT fleet — covering 35+ languages that commercial speech-to-text APIs underserve, with proper dialect / script disclosures where they matter.