更新readme

Readme.md

@@ -1,8 +1,11 @@
 ## PaddleOCR API
 
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 **$host: http://139.9.167.178:5051**
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 **接口说明：[ApiPost-OCR接口说明](https://console-docs.apipost.cn/preview/2b4cea51f80eaed2/33c12de1392ea998)**
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 ---
 
 + $host/