fix: navigation typo

Author: goosewin

fern/docs.yml

@@ -482,7 +482,7 @@ navigation:
                   - page: OpenRouter
                     path: providers/model/openrouter.mdx
 
-              - section: Transcribers (Text-to-speech)
+              - section: Transcribers (Speech-to-Text)
                 icon: fa-light fa-microphone
                 contents:
                   - page: Deepgram