chore: update docs

Author: zmh-program

README.md

@@ -78,6 +78,7 @@ Response
 - `AZURE_SPEECH_KEY`: Azure Speech to Text Service Key (Required for Audio Support)
 - `AZURE_SPEECH_REGION`: Azure Speech to Text Service Region (Required for Audio Support)
 
+
 ### 🔍 OCR Config (Optional)
 > [!NOTE]
 > OCR Support is based on [PaddleOCR API](https://github.com/cgcel/PaddleOCRFastAPI), please deploy the API to use OCR feature.
@@ -104,6 +105,7 @@ OCR_SKIP_MODELS=vision,gpt-4-v,gpt-4-all,gpt-4-vision-preview,gpt-4-1106-vision-
 OCR_SPEC_MODELS=gpt-4-turbo-preview,claude-3-haiku
 ```
 
+
 ### 🖼 Image Storage Config (Optional)
 > [!NOTE]
 > **When OCR is enabled, the service will firstly using OCR then store the images.**